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79-638: The disaster occurred when workers were ordered to dig illegally under the Susquehanna River without proper safety precautions, creating a hole in the riverbed which caused the river to flood into the many interconnected mine galleries in the Wyoming Valley between the right-bank (western shore) town of Exeter, Pennsylvania , and the left-bank (eastern shore) town of Port Griffith in Jenkins Township, near Pittston . Twelve miners were killed. Plugging

158-527: A center for resort and travel destinations in the United States. New York City is the most populous city in the country and a major world financial center. Seventy-one of the world's Fortune 500 companies have their corporate headquarters in New York City, while Midtown Manhattan , with 400 million square feet of office space in 2018, is the largest central business district in the world. Washington, D.C.

237-655: A consolidation of area parishes and listed for sale in July 2008. The property was purchased on January 15, 2009, exactly one week prior to the fiftieth anniversary, by Susan Baloga and John Baloga, the grandson of John Baloga, one of the twelve miners who perished in the event. The property is now the site of Baloga Funeral Home. The fiftieth anniversary also included a special program at the Anthracite Heritage Museum in Scranton , which organized an annual program concerning

316-555: A net height of 1,009 feet (308 m) between basins, requiring the use of more than 100 water locks , which were too expensive to be maintained under the new competition. The Susquehanna River figures in the history of the Latter Day Saint movement . It holds that Joseph Smith and Oliver Cowdery received the priesthood from heavenly beings at a site along the Susquehanna and performed their first baptisms of Latter Day Saints in

395-553: A result of the disaster, including the mine superintendent, Robert Dougherty; owner Louis Fabrizio; secret owner August J. Lippi, who was also the president of District 1 of the United Mine Workers ; and three union officials. Six served jail time. After the disaster, the widows of the twelve victims did not receive death benefit payments from the Anthracite Health and Welfare Fund for more than four years. January 22, 2009,

474-678: A third major language family, with their peoples occupying much of the middle areas of the interior. Algongquian-speaking peoples predominated in the coastal areas. Iroquoian speakers , such as the Cherokee and Tuscarora peoples , generally occupied areas to the interior near the Piedmont and foothills. In 1615, the river was traversed by the French explorer Étienne Brûlé . In the 1670s the Conestoga, or Susquehannock people, succumbed to Iroquois conquest by

553-443: A warm temperate climate ( Cfa Köppen/ Do Trewartha) with long and hot summers with at least one month over 22°C (71.6°F), cool winters with all months over freezing, and six to seven months above 50°F. Although winter precipitation is more likely to fall as rain than as snow, occasional heavy snow is possible. The area from the southern Delmarva Peninsula , southeast Virginia, and central North Carolina south to central Florida

632-511: Is a practical ferry for up to four vehicles and 50 passengers, while the Pride of the Susquehanna , based at Harrisburg, provides a passenger-only pleasure cruise. Most of the canals have been filled in or are partially preserved as a part of historical parks. Dams generally are used to generate power or to provide lakes for recreation. The environmental group American Rivers named the Susquehanna " America's Most Endangered River for 2005 " because of

711-536: Is humid subtropical ( Cfa/Cf ), with hot and rainy summers, mild and drier winters, and eight to twelve months above 50°F. Urban heat island exclaves of this zone are found north of this area in Baltimore and Washington, D.C. The region of Florida from the south-central region of the state south to the Florida Keys has a tropical climate ( Af/Aw/Ar ) that is usually frost-free and warm to hot all year, and all of

790-516: Is more likely to fall as rain than as snow, occasional heavy snow is possible. The East Coast, with the exception of eastern Maine, is a low-relief, passive margin coast. It has been shaped by the Pleistocene glaciation in the far northern areas in New England, with offshore islands such as Nantucket , Martha's Vineyard , Block Island , and Fishers Island . From northern New Jersey southward,

869-770: Is regarded by many as one of the premier bass fishing rivers in North America. Canoe races are held annually on various sections of the river, such as the amateur race held in Oneonta, New York . Susquehanna rowing and paddling have a long history. Starting in 1874, rowers from Shamokin Dam, Pennsylvania , raced men from Sunbury . The General Clinton Canoe Regatta, a 70-mile (110 km) flat-water race, takes place each year in Bainbridge, New York , on Memorial Day weekend. Binghamton University Crew and Hiawatha Island Boat Club are also located on

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948-429: Is the federal capital and political nerve center of the United States. Many organizations such as defense contractors, civilian contractors, nonprofit organizations, lobbying firms, trade unions, industry trade groups and professional associations have their headquarters in or near Washington, D.C., in order to be close to the federal government . Miami is one of the top domestic and international travel destinations in

1027-707: The Alleghenian orogeny uplift events, when Africa (as part of Gondwana ) slammed into the Northern part of Euramerica . The Susquehanna basin reaches its ultimate outflow in the Chesapeake Bay . It was well established in the flat tidelands of eastern North America during the Mesozoic era about 252 to 66 million years ago. This is the same period when the Hudson , Delaware and Potomac rivers were established. Both branches and

1106-623: The Atlantic Ocean . The Thirteen Colonies , which formed the United States in 1776 were located on this coast, and it has played an important role in the development of the United States. The region is generally understood to include the U.S. states that border the Atlantic Ocean: Connecticut , Delaware , Florida , Georgia , Maine , Maryland , Massachusetts , New Hampshire , New Jersey , New York , North Carolina , Rhode Island , South Carolina , and Virginia , as well as

1185-751: The Chemung from the northwest. It makes a right-angle curve between Sayre and Towanda to cut through the Endless Mountains in the Allegheny Plateau of Pennsylvania. It receives the Lackawanna River southwest of Scranton and turns sharply to the southwest, flowing through the former anthracite industrial heartland in the mountain ridges of northeastern Pennsylvania, past Pittston City ( Greater Pittston ), Wilkes-Barre , Nanticoke , Shickshinny , Berwick , Bloomsburg , and Danville , before receiving

1264-536: The Chenango in downtown Binghamton . After meandering westwards, it turns south crossing the line again through the twin towns of Waverly, New York , and Sayre, Pennsylvania , and their large right bank railyard, once briefly holding the largest structure in the United States devoted to the maintenance and construction of railroad locomotives. A couple of miles south, in Athens Township, Pennsylvania , it receives

1343-465: The Chernobyl nuclear accident . The remaining reactor at Three Mile Island Nuclear Generating Station was shut down in 2019. In 2015, a smallmouth bass with a rare, cancerous tumor was caught from the river, raising renewed concerns about toxic materials and water pollution. The Environmental Protection Agency reported, "we do not have sufficient data at this time to scientifically support listing

1422-570: The Civil War 's 1863 Gettysburg Campaign , Union Major General Darius N. Couch , commander of the Department of the Susquehanna , resolved that Robert E. Lee 's Confederate Army of Northern Virginia would not cross the Susquehanna. He positioned militia units under Maj. Granville Haller to protect key bridges in Harrisburg and Wrightsville , as well as nearby fords. Confederate forces reached

1501-554: The Lenape (Delaware) word siskëwahane meaning "Muddy River". Alternatively, it may come from the Lenape (Delaware) term Sisa'we'hak'hanna , which means "Oyster River". Oyster beds were widespread in the bay near the mouth of the river, which the Lenape farmed. They left oyster shell middens at their villages. A third account translates "Susquehanna" from the Susquehannock language , of

1580-760: The Monongahela , Allegheny Rivers and their confluence into the Ohio River flowing southwest towards the Mississippi River . The 82-mile (132 km) Union Canal was completed in 1828 to connect the Schuylkill River (flowing southeast towards the Delaware River at Philadelphia ) at Reading westwards to the Susquehanna River above the state capital of Harrisburg . Competition from faster transport via

1659-636: The Ohio River . In 1792, the Union Canal was proposed in order to link the Susquehanna and the Delaware rivers in Pennsylvania along Swatara and Tulpehocken creeks. In the 19th century, many industrial centers developed along the Susquehanna, using its water power to drive mills and coal machinery, to cool machines, and as a waterway for the transport of raw and manufactured goods. Based on colonial charters, both Pennsylvania and Connecticut claimed land in

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1738-726: The Potomac River , respectively, both of which are tidal arms of the Atlantic Ocean. The original Thirteen Colonies of Great Britain in North America all lay along the East Coast. Two additional U.S. states on the East Coast were not among the original Thirteen Colonies: Maine became part of the English Colony of Massachusetts in 1677 and Florida was held by the British from

1817-518: The Susquehanna Gap through the Blue Mountain Ridge , just northwest of Harrisburg . Downtown Harrisburg developed on the east side of the river, which is nearly a mile wide here. Harrisburg is the largest city located on the lower river, which flows southeast across South Central Pennsylvania , forming the border between York and Lancaster counties, and receiving Swatara Creek from

1896-466: The Wyoming Valley along the Susquehanna. Connecticut founded Westmoreland County here and defended its claim in the Pennamite Wars . Under federal arbitration, eventually the state ceded this territory to Pennsylvania. In the 1790s English Lake Poets Robert Southey , Samuel Taylor Coleridge , and Robert Lovell formulated the " Pantisocracy Plan" to marry three sisters and move to the banks of

1975-505: The history of the United States . In the 18th century, William Penn , the founder of the Pennsylvania Colony , negotiated with the Lenape to allow white settlement in the area between the Delaware River and the Susquehanna, which was part of Lenape territory. In late colonial times, the river became an increasingly important transportation corridor, used to ship anthracite coal , discovered by Necho Allen , from its upper reaches in

2054-822: The railroad industry by the 1850s resulted in reducing the reliance on the river for transport. Two canal systems were constructed on the lower Susquehanna to bypass the rapids. The first was the Susquehanna Canal , also called the Conowingo Canal or the Port Deposit Canal, completed in 1802 by a Maryland company known as the Proprietors of the Susquehanna Canal. The second was the much longer and more successful Susquehanna and Tidewater Canal . The canals required dams to provide canal water and navigation pools. As

2133-604: The 12 months of the year average above 18 °C (64.4 °F). This region of Florida is the only tropical climate in the continental U.S. Although landfalls are rare, the Eastern Seaboard is susceptible to hurricanes in the Atlantic hurricane season, officially running from June 1 to November 30, although hurricanes can occur before or after these dates. Hurricanes Hazel , Hugo , Bob , Isabel , Irene , and Sandy , and most recently Florence , Isaias , Henri , and Ida are some of

2212-749: The 1950s–1960s, a wide-ranging rail transportation infrastructure still operates along the river's shores. Also called the Main Branch Susquehanna , the longer branch of the river rises at the outlet of Otsego Lake in Cooperstown, New York . From there, the north branch of the river runs west-southwest through rural farmland and dairy country, receiving the Unadilla River at Sidney . It dips south into Pennsylvania briefly to turn sharply 90 degrees west at Susquehanna and again 90 degrees north at Great Bend hooking back into New York . It receives

2291-739: The East Coast is connected from the Annisquam River in Gloucester, Massachusetts to Miami, Florida , by the Intracoastal Waterway , also known as the East Coast Canal, which was completed in 1912. Amtrak's Downeaster and Northeast Regional offer the main passenger rail service on the Seaboard. The Acela Express offers the only high-speed rail passenger service in the Americas, by

2370-521: The Great Lakes. The English of Pennsylvania referred to the Eroni people of Conestoga as "Susquehannocks" or "Susquehannock Indians", a name derived from the Lenape term. In addition, John Smith of Jamestown , Virginia, labeled their settlement as "Sasquesahanough" on his 1612 map when he explored the upper Chesapeake Bay area. In Virginia and other southern colonies, Siouan -speaking tribes constituted

2449-813: The Iroquoian family, as "the stream that falls toward the south" or "long-crooked-river". The Lenape are an Algonquian-speaking Native American people who had communities ranging from coastal Connecticut through New York and Long Island, and further south into New Jersey and Delaware in the mid-Atlantic area. Their settlements in Pennsylvania included Con'esto'ga ("Roof-place" or "town", modern Washington Boro, Lancaster County ), also called Ka'ot'sch'ie'ra ("Place-crawfish", modern Chickisalunga, Lancaster County), or Gasch'guch'sa ("Great-fall-in-river", modern Conewago Falls , Lancaster County). They were called Minquas ("quite different"), or Sisa'we'hak'hanna'lenno'wak ("Oyster-river-people") by others. The Lenape also called

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2528-528: The New York system. Today 200 bridges cross the Susquehanna. The Rockville Bridge , which crosses the river from Harrisburg to Marysville, Pennsylvania , is the longest stone masonry arch bridge in the world. It was built by the Pennsylvania Railroad in 1902, replacing an earlier iron bridge. Two seasonal ferries operate across the Susquehanna. The Millersburg Ferry at Millersburg, Pennsylvania ,

2607-573: The North Branch flowing from the northwest at Northumberland. Downstream from the confluence of its branches in Northumberland , the river flows south past Selinsgrove , where it is joined by its Penns Creek tributary, and cuts through a water gap at the western end of Mahantongo Mountain. It receives the Juniata River from the northwest at Duncannon , then passes through its last water gap,

2686-623: The North Branch of the river. Smith and Cowdery said that they were visited on May 15, 1829, by the resurrected John the Baptist and given the Aaronic priesthood . Following his visit, Smith and Cowdery baptized each other in the river. Later that year, they said they were visited near the river by the apostles Peter , James and John . Both events took place in unspecified locations near the river's shore in Susquehanna County, Pennsylvania . During

2765-620: The Susquehanna River to start a socialist experiment. They made the marriages but Southey moved to Lisbon, Portugal , to visit an uncle, and they abandoned the plan to move to the United States. In 1833 John B. Jervis began a canal system to extend the Chenango River and connect the waters of the Susquehanna from Chenango Point to the Erie Canal , which ran through the Mohawk Valley of New York , ultimately connecting with Lake Erie through

2844-858: The Three Mile Island accident has not resulted in any harmful radiation effects. The areas in and along a 262-km length of the Susquehanna River in Pennsylvania were monitored for the presence of radioactive materials. This study began two months after the 1979 Three Mile Island (TMI) partial reactor meltdown; it spanned the next 25 years. Monitoring points included stations at the PPL Susquehanna and TMI nuclear power plants. Monthly gamma measurements documented concentrations of radionuclides from natural and anthropogenic sources. During this study, various series of gamma-emitting radionuclide concentration measurements were made in many general categories of animals, plants, and other inorganic matter, both within and near

2923-572: The United States . By watershed area, it is the 16th-largest river in the United States, and also the longest river in the early 21st-century continental United States without commercial boat traffic. The Susquehanna River forms from two main branches: the North Branch , which rises in Cooperstown, New York , and is regarded by federal mapmakers as the main branch or headwaters, and the West Branch , which rises in western Pennsylvania and joins

3002-658: The United States gaining independence in the Revolutionary War, in 1790 Colonel Timothy Matlack , Samuel Maclay and John Adlum were commissioned by the Supreme Executive Council of the Commonwealth of Pennsylvania to survey the headwaters of the Susquehanna river. They were to explore a route for a passage to connect the West Branch with the waters of the Allegheny River , which flowed to Pittsburgh and

3081-415: The United States. Miami is the warmest major city in the continental United States in winter, which contributes to it being a major tourism hub for international visitors. Miami has one of the largest concentrations of international banks in the United States, and the third-largest skyline in the U.S. with over 439 high-rises, 68 of which exceed 490 ft (149 m). Port of Miami is the busiest cruise port in

3160-493: The West Branch at Northumberland. The origin of the official West Branch is near Elmora, Pennsylvania , in northern Cambria County near the contemporary junction of Mitchel Road and US Route 219 (locally Plank Road). It travels northeasterly through the towns of Northern Cambria , Cherry Tree , Burnside , Mahaffey and Curwensville (where the river is dammed to form a lake), into and through Clearfield , where it receives Clearfield Creek . The West Branch turns to

3239-471: The Wood Canal. In October 1836, water from the Susquehanna was connected to the Erie Canal at Utica, New York . Water travel was the main form of transportation during that era. The Erie Canal dramatically expanded trade between communities around the Great Lakes and markets in New York and Pennsylvania. With the expansion of construction of railroad lines, canal-transport became unprofitable, as it could not compete in speed or flexibility. Boats had to climb

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3318-434: The area Sisa'we'hak'hanna'unk ("Oyster-river-place"). Peoples of the mid-Atlantic Coast included coastal peoples who spoke Algonquian languages , such as the Lenape (whose bands spoke three dialects of Lenape), and Iroquoian languages -speaking peoples of the interior, such as the Eroni and the Five Nations of the Iroquois League , or Haudenosaunee , based largely in present-day New York and upper Pennsylvania around

3397-405: The coastal plain broadens southwards, separated from the Piedmont region by the Atlantic Seaboard fall line of the East Coast rivers, often marking the head of navigation and prominent sites of cities. The coastal areas from Long Island south to Florida are often made up of barrier islands that front the coastal areas, with the long stretches of sandy beaches. Many of the larger capes along

3476-402: The coastline lies along the Atlantic Ocean . The 14 states that have a shoreline on the Atlantic Ocean are (from north to south): Maine , New Hampshire , Massachusetts , Rhode Island , Connecticut , New York , New Jersey , Delaware , Maryland , Virginia , North Carolina , South Carolina , Georgia , and Florida . Pennsylvania and Washington, D.C. border the Delaware River and

3555-417: The disaster in January. Susquehanna River The Susquehanna River ( / ˌ s ʌ s k w ə ˈ h æ n ə / SUSS -kwə- HAN -ə ; Lenape : Siskëwahane ) is a major river located in the Mid-Atlantic region of the United States, crossing three lower Northeast states (New York, Pennsylvania and Maryland). At 444 miles (715 km) long, it is the longest river on the East Coast of

3634-428: The end of the French and Indian War until 1781 and was part of New Spain until 1821. In present-day Florida, Spanish explorer Juan Ponce de León made the first textual records of the state during his 1513 voyage. The state was initially named for Ponce de Ponce de León, who called the peninsula La Pascua Florida in recognition of the verdant landscape and because it was the Easter season. Delaware Colony and

3713-547: The evacuation of thousands of residents. In September 2011 the Susquehanna River and its communities were hit by Tropical Storm Lee , which caused the worst flooding since Agnes in 1972. The Susquehanna River is important in the transportation history of the United States . Before the Port Deposit Bridge opened in 1818, the river formed a barrier between the northern and southern states, as it could be crossed only by ferry . The earliest dams were constructed to support ferry operations in low water. The presence of many rapids in

3792-399: The excessive pollution it receives. Most of the pollution in the river is caused by excess animal manure from farming , agricultural runoff , urban and suburban stormwater runoff , and raw or inadequately treated sewage . In 2003 the river contributed 50% of the freshwater, 44% of the nitrogen , 21% of the phosphorus , and 21% of the sediment flowing into the Chesapeake Bay . It

3871-446: The federal capital of Washington, D.C. , and non-coastline states: Pennsylvania , Vermont , and West Virginia . The place name East Coast derives from the idea that the contiguous 48 states are defined by two major coastlines, one at the western edge and one on the eastern edge. Other terms for referring to this area include the Eastern Seaboard , which is another term for coastline, Atlantic Coast, and Atlantic Seaboard because

3950-411: The first spot in the United States that immigrants arrived and the close proximity of Europe , the Caribbean , and Latin America , the East Coast is home to a diverse population and home to multi-cultures when compared to the rest of the U.S. From the strong Latin culture in southern Florida , to the 200-year-old Gullah culture of the low country coastal islands of Georgia and South Carolina , to

4029-433: The hardest-hit communities and the capital Harrisburg was flooded. The Chesapeake Bay received so much fresh water that it altered the ecosystem, killing much of the marine life that depended on saltwater. The Mid-Atlantic Flood of June 2006 , caused by a stalled jet stream-driven storm system, affected portions of the river system. The worst affected area was Binghamton, New York , where record-setting flood levels forced

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4108-451: The hole in the riverbed took three days, and mitigation efforts created several new islands between the two towns and altered the western-side flow of the Susquehanna around these. The River Slope Mine, an anthracite coal mine owned by the Knox Coal Company, flooded when coal company management had the miners dig illegally under the Susquehanna River . Tunneling steeply upwards toward the river bed without having drilled boreholes to gauge

4187-468: The industrial age progressed, bridges replaced ferries , and railroads replaced canals. The railroads were often constructed on top of the canal right-of-way along the river. Many canal remnants can be seen; for example, in Havre de Grace, Maryland , along US Route 15 in Pennsylvania, and in upstate New York at various locations. These latter remnants are parts of the upstream divisions of the Pennsylvania Canal , of privately funded canals, and of canals in

4266-410: The introduction to his historical novel The Pioneers (1823). At Athens, Pennsylvania , then known as Tioga or "Tioga Point", Clinton met with General John Sullivan and his forces, who had marched from Easton, Pennsylvania . Together on August 29, they defeated the Tories and warriors of allied Iroquois bands at the Battle of Newtown (near present-day Elmira, New York ). This was part of what

4345-417: The largest city and the largest metropolitan area on the East Coast. The East Coast is the most populated coastal area in the United States. Hartford The primary Interstate Highway along the East Coast is Interstate 95 , completed in 2018, which replaced the historic U.S. Route 1 ( Atlantic Highway ), the original federal highway that traversed all East Coast states, except Delaware . By water,

4424-468: The lateral near-parallel array of mountain ridges. The river empties into the northern end of the Chesapeake Bay at Perryville and Havre de Grace, Maryland , providing half of the Bay's freshwater inflow. The bay lies in the flooded valley, or ria , of the Susquehanna. The Susquehanna River is one of the oldest existing rivers in the world, being dated as 320–340 Myr , older than the mountain ridges through which it flows. These ridges resulted from

4503-897: The lenient US definition of high speed rail. Between New York and Boston the Acela Express has up to a 54% share of the combined train and air passenger market. Some of the largest airports in the United States are located along the East Coast of the United States, such as John F. Kennedy International Airport in Queens , New York City , Logan International Airport in Boston , Newark Liberty Airport in Newark, New Jersey , Philadelphia International Airport in Philadelphia , Baltimore–Washington International Airport near Baltimore , Dulles International Airport near Washington, D.C. , Hartsfield–Jackson International Airport in Atlanta , Miami International Airport in Miami , Charlotte Douglas International Airport in Charlotte, North Carolina , Tampa International Airport in Tampa , and Orlando International Airport in Orlando, Florida . As

4582-404: The lower East Coast are in fact barrier islands, like the Outer Banks of North Carolina and Cape Canaveral , Florida. The Florida Keys are made up of limestone coral and provide the only coral reefs on the U.S. mainland. In 2010, the population of the states that have shoreline on the East Coast was estimated at 112,642,503 (about 36% of the country's total population). New York City is both

4661-402: The lower Susquehanna were part of important regional transportation corridors. The river was extensively used for muscle-powered ferries , boats , and canal boat shipping of bulk goods in the brief decades before the Pennsylvania Canal System was eclipsed by the coming of age of steam -powered railways . While the railroad industry has been less prevalent since the closures and mergers of

4740-448: The main branch near Northumberland in central Pennsylvania. The river drains 27,500 square miles (71,000 km ), including nearly half of the land area of Pennsylvania. The drainage basin includes portions of the Allegheny Plateau region of the Appalachian Mountains , cutting through a succession of water gaps in a broad zigzag course to flow across the rural heartland of southeastern Pennsylvania and northeastern Maryland in

4819-403: The main stem of the Susquehanna as impaired ." The Susquehanna River has attracted boaters who watch or fish for its migratory species. Many tourists and local residents use the Susquehanna in the summer for recreation purposes such as kayaking, canoeing, and motor-boating. Due to the high volume of smallmouth bass in the river, it is the host of numerous bass fishing tournaments each year and

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4898-416: The many historic cities in the Mid-Atlantic , where a strong English, German, Italian, Irish, and French culture are present, the East Coast is significantly more diverse than the rest of the United States. Numerous Chinatowns in New York City , and Little Havana in Miami , are examples of such cultural centers in the bigger cities. The East Coast is home to much of the political and financial power and

4977-686: The monthly mean temperature of the coldest month (January) and the number of months averaging above 50 °F (10 °C), respectively. The region from northern Maine and Upstate New York south to almost all of Connecticut, most of northern New Jersey (except for areas close enough to New York City ), most of Pennsylvania, and western Maryland has a humid continental climate ( Dfa/Dfb/Dc ), with warm-to-hot summers, cold and snowy winters with at least one month averaging below freezing, and four to seven months with mean temperatures warmer than 50 °F. The area from Martha's Vineyard and extreme SW Rhode Island to southern Delaware and western North Carolina has

5056-406: The more significant storms to have affected the region. The least common climate on the East Coast is the oceanic ( Cfb/Do ), which is only found on Block Island , Nantucket , and the Outer Cape and Chatham on Cape Cod , and in areas of the southern Appalachian Mountains . This zone has all monthly averages between 0 and 22 °C and six to seven months above 50 °F. Although winter precipitation

5135-463: The mountains to the markets downriver. In 1779 during the American Revolutionary War , General James Clinton led an expedition down the Susquehanna from its headwaters. His party had made the upper portion navigable by damming the river's source at Otsego Lake , allowing the lake's level to rise, and then destroying the dam and flooding the river in order for his flotilla to travel for miles downstream. James Fenimore Cooper described this event in

5214-406: The northeast. It crosses into northern Maryland approximately 30 miles (48 km) northeast of Baltimore and is joined by Octoraro Creek from the northeast and Deer Creek from the northwest. The river enters the northern end of the Chesapeake Bay at Havre de Grace . Concord Point Light was built here in 1827 to accommodate the increasing navigational traffic. "Susquehanna" may come from

5293-445: The powerful Five Nations of the Iroquois League based in present-day New York, who wanted to control the fur trade with Europeans. The Susquehannock assimilated with the Iroquois. In the aftermath, the Iroquois resettled some of the semi-tributary Lenape in this area, as it was near the western boundary of the Lenape's former territory, known as Lenapehoking . The Susquehanna River has continued to play an important role throughout

5372-462: The provinces of New Jersey , New York , and Pennsylvania had been colonized by the Dutch as New Netherland until they were ceded to the British in the mid- to late-17th century. Until 1791, Vermont was an independent nation as the Vermont Republic . Three basic climate regions occur on the East Coast according to the Köppen climate classification and four occur according to the Trewartha climate classification from north to south based on

5451-407: The river at several locations in Cumberland and York counties. In 1972 the remnants of Hurricane Agnes stalled over the New York-Pennsylvania border, dropping as much as 20 inches (510 mm) of rain on the hilly lands. Much of that precipitation was received into the Susquehanna from its western tributaries, and the valley suffered disastrous flooding. Wilkes-Barre, Pennsylvania , was among

5530-435: The river meant that while commercial traffic could navigate down the river in the high waters of the spring thaws, nothing could move up. The Susquehanna was improved by navigations throughout the 1820s and 1830s as the Pennsylvania Canal . Together with facilities of the Allegheny Portage Railroad , loaded barges were transferred from the canal and hoisted across the mountain ridge into the Pittsburgh area with access to

5609-429: The river, in the Southern Tier of New York. The Appalachian Trail passes through Duncannon, Pennsylvania , and crosses the Susquehanna on the Clarks Ferry Bridge . East Coast of the United States The East Coast of the United States , also known as the Eastern Seaboard , the Atlantic Coast , and the Atlantic Seaboard , is the region encompassing the coastline where the Eastern United States meets

5688-418: The river. Sampling began in 1979 before the first start-up of the PPL Susquehanna power plant. Although all species were not continuously monitored for the entire period, an extensive database was compiled. In May 1986, ongoing measurements from several monitoring stations along the river near Three Mile Island, Peach Bottom and Calvert Cliffs detected iodine-131 beta particles attributable to fallout from

5767-421: The rock thickness overhead, the miners came to a section with a thickness of about 6 feet (1.8 m)—35 feet (11 m) was considered the minimum for safety. The insufficient "roof" cover caused the water of the river to break into the mine. It took three days to plug the hole in the riverbed, which was done by dumping large railroad cars, smaller mine cars, culm , and other debris into the whirlpool formed by

5846-617: The southeast and passes Karthaus (at Mosquito Creek), Keating (at Sinnemahoning Creek), Renovo and Lock Haven , where it receives Bald Eagle Creek . At Jersey Shore, Pennsylvania, Pine Creek, the largest tributary of the West Branch Susquehanna River, is received. Pine Creek has the largest watershed of all the West Branch’s tributaries. It passes Williamsport , where both Lycoming Creek and Loyalsock Creek empty into it, then turns south, passing Lewisburg , before joining

5925-613: The twelve who died were never recovered, despite efforts to pump the water out of the mine. The victims were Samuel Altieri, John Baloga, Benjamin Boyar, Francis Burns, Charles Featherman, Joseph Gizenski, Dominic Kaveliski, Frank Orlowski, Eugene Ostrowski, William Sinclair, Daniel Stefanides, and Herman Zelonis. The Knox catastrophe was less deadly than the Twin Shaft disaster in Pittston in 1896, which claimed 58 lives. Ten people were indicted as

6004-494: The water draining into the mine. Eventually, an estimated 10 billion US gallons (38,000,000 m; 8.3 × 10 imp gal) of water filled the mines. Twelve mineworkers died; while 69 others escaped. Amedeo Pancotti was awarded the Carnegie Medal for climbing 50 feet (15 m) up the abandoned Eagle Air Shaft and alerting rescuers, which resulted in the safe recovery of 33 men including Pancotti himself. The bodies of

6083-478: Was designated as one of the American Heritage Rivers in 1997. The designation provides for technical assistance from federal agencies to state and local governments working in the Susquehanna watershed. Another environmental concern is radioactivity released during the 1979 Three Mile Island accident . However, extensive radionuclide studies over a 25-year period from 1979 through 2003, confirm that

6162-498: Was known as the "Sullivan-Clinton Campaign" or the " Sullivan Expedition ". They swept through western New York, dominated by the Seneca people , destroying more than 40 Seneca villages, as well as the stores of crops the people had set aside for winter. Many of the Iroquois left New York and went to Canada as refugees; casualties from exposure and starvation were high that winter. Following

6241-719: Was the fiftieth anniversary of the Knox Mine Disaster, with an annual memorial mass at St. John the Evangelist Catholic Church in Pittston, Pennsylvania , and a ceremony at the former St. Joseph's Catholic Church in Port Griffith , which is the site of a commemorative monument and a State Historic Marker erected in 1999 by the Pennsylvania Historical and Museum Commission . The church was closed in May 2008 owing to

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