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61-513: The Hoh's drainage basin is 299 square miles (770 km). Its discharge , or streamflow , has considerable seasonal variation, with summer flow averaging about one-third that of winter flows. The Hoh is a glacial river fed by glaciers on Mount Olympus, such as the Blue Glacier . The glaciers grind rock into a fine glacial flour which turns the Hoh River a milky slate blue color. The river valley

122-427: A hierarchical pattern . Other terms for a drainage basin are catchment area , catchment basin , drainage area , river basin , water basin , and impluvium . In North America, they are commonly called a watershed , though in other English-speaking places, "watershed" is used only in its original sense, that of the drainage divide line. A drainage basin's boundaries are determined by watershed delineation ,

183-487: A broad and flat coastal floodplain. In its final miles the Hoh River collects the tributaries Braden Creek , Fletcher Creek and Fossil Creek. Highway 101 leaves the river at this point and continues south. About two miles from its mouth the Hoh River forms the boundary between the Hoh Indian Reservation on the south bank, and the coastal portion of Olympic National Park to the north. The former settlement of Oil City

244-437: A common task in environmental engineering and science. In a closed drainage basin, or endorheic basin , rather than flowing to the ocean, water converges toward the interior of the basin, known as a sink , which may be a permanent lake, a dry lake , or a point where surface water is lost underground . Drainage basins are similar but not identical to hydrologic units , which are drainage areas delineated so as to nest into

305-449: A drainage basin, and there are different ways to interpret that data. In the unlikely event that the gauges are many and evenly distributed over an area of uniform precipitation, using the arithmetic mean method will give good results. In the Thiessen polygon method, the drainage basin is divided into polygons with the rain gauge in the middle of each polygon assumed to be representative for

366-540: A drainage boundary is referred to as watershed delineation . Finding the area and extent of a drainage basin is an important step in many areas of science and engineering. Most of the water that discharges from the basin outlet originated as precipitation falling on the basin. A portion of the water that enters the groundwater system beneath the drainage basin may flow towards the outlet of another drainage basin because groundwater flow directions do not always match those of their overlying drainage network. Measurement of

427-482: A mile below the South Fork confluence the Hoh River leaves Olympic National Park. It continues to flow west through a widening valley surrounded by low mountains and foothills. Ranches occupy parts of the valley and land ownership is generally private. Owl Creek and Maple Creek join from the south. The Hoh makes a small northward bend, skirting the edge of, and briefly entering Olympic National Forest . Elk Creek joins from

488-581: A multi-level hierarchical drainage system . Hydrologic units are defined to allow multiple inlets, outlets, or sinks. In a strict sense, all drainage basins are hydrologic units but not all hydrologic units are drainage basins. About 48.71% of the world's land drains to the Atlantic Ocean . In North America , surface water drains to the Atlantic via the Saint Lawrence River and Great Lakes basins,

549-611: A treaty was signed by representatives of the Quinault , Queets , Quileute , and Hoh. The negotiations were done in the trade pidgin language Chinook Jargon . The treaty, known as the Treaty of Olympia (or the Quinault River Treaty), was ratified by Congress in 1859. Its terms included the cession of most of the western Olympic Peninsula to the U.S. federal government with a reserve to be determined later. The Quinault Indian Reservation

610-418: Is an area of land in which all flowing surface water converges to a single point, such as a river mouth , or flows into another body of water , such as a lake or ocean . A basin is separated from adjacent basins by a perimeter, the drainage divide , made up of a succession of elevated features, such as ridges and hills . A basin may consist of smaller basins that merge at river confluences , forming

671-493: Is generally broad and relatively flat, causing the glacial sediments to settle out, creating extensive gravel bars, river meanders, and the many side channels characteristic of a braided river . One of the road entrances to Olympic National Park exits from Olympic Highway 101 twelve miles south of Forks, WA and follows the north bank of Hoh River upstream to the Hoh Rain Forest Visitor Center, campground, and

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732-500: Is located along the river trail a few miles downstream. Below that the tributary Cougar Creek joins from the north, then Mount Tom Creek from the south. Jackson Creek joins from the south at approximately river mile 37 near the Hoh Rain Forest Visitor Center and campground. The Visitor Center is located at the end of Upper Hoh Road and the beginning of the Hoh River Trail. The Upper Hoh Road runs east from U.S. Highway 101 , paralleling

793-407: Is located just west of the horseshoe bend near where U.S. Highway 101 crosses the river. Highway 101 follows the river on the south side. The small Oil City Road follows the Hoh River on the north side to the river's mouth. Cottonwood Campground, another DNR site, is on the north side of the Hoh River, accessed by Oil City Road. Below the horseshoe bend the Hoh River begins to meander widely through

854-585: Is located on the South Fork. The road to the campground continues up the South Fork Hoh River to the South Fork Hoh Trailhead, just west of the national park boundary. The indigenous people of the Hoh River are known as the Hoh but they call themselves chalat' . Their name for the Hoh River is chalak'ac'it . The earliest documented encounter between Europeans and the Hoh people occurred in 1787 when

915-460: Is located on the north side of the Hoh River about a half mile from its mouth. A large headland peninsula called Hoh Head is located on the Pacific coast a few miles north of the river's mouth. The South Fork Hoh River originates at 47°46′53″N 123°43′2″W  /  47.78139°N 123.71722°W  / 47.78139; -123.71722 , flowing from Hubert Glacier and other small glaciers on

976-480: Is referred to as " watershed management ". In Brazil , the National Policy of Water Resources, regulated by Act n° 9.433 of 1997, establishes the drainage basin as the territorial division of Brazilian water management. When a river basin crosses at least one political border, either a border within a nation or an international boundary, it is identified as a transboundary river . Management of such basins becomes

1037-600: Is the Dead Sea . Drainage basins have been historically important for determining territorial boundaries, particularly in regions where trade by water has been important. For example, the English crown gave the Hudson's Bay Company a monopoly on the fur trade in the entire Hudson Bay basin, an area called Rupert's Land . Bioregional political organization today includes agreements of states (e.g., international treaties and, within

1098-682: The African Great Lakes , the interiors of Australia and the Arabian Peninsula , and parts in Mexico and the Andes . Some of these, such as the Great Basin, are not single drainage basins but collections of separate, adjacent closed basins. In endorheic bodies of water where evaporation is the primary means of water loss, the water is typically more saline than the oceans. An extreme example of this

1159-584: The Eastern Seaboard of the United States, the Canadian Maritimes , and most of Newfoundland and Labrador . Nearly all of South America east of the Andes also drains to the Atlantic, as does most of Western and Central Europe and the greatest portion of western Sub-Saharan Africa , as well as Western Sahara and part of Morocco . The two major mediterranean seas of the world also flow to

1220-462: The Hoh Rain Forest , a temperate rain forest , and, closer to Mount Olympus, montane forests and subalpine meadows. There are a number of backcountry campsites along the trail. Mountaineers wishing to climb Mount Olympus typically use the Hoh River Trail to reach the mountain. The climb requires experience with glacier travel and crevasse rescue skills. The Hoh Lake Trail branches off from

1281-578: The Hoh Rainforest , a relatively rare example of a temperate rain forest . Abundant winter rainfall results in a lush green canopy of coniferous and deciduous trees, often covered with mosses and ferns. Annual precipitation is 140 to 170 inches (3,600 to 4,300 mm). According to the National Park Service the Hoh Rain Forest is one of the finest remaining examples of temperate rain forest in

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1342-733: The Lydia , commanded by Captain T. Brown, an American working for the Russian American Company, sailed into Neah Bay. The thirteen surviving captives being held by the Makah were ransomed by Captain Brown, who then returned them to Sitka . In the 1850s Isaac Stevens , the first governor of Washington Territory , began negotiations with the tribes of the Olympic Peninsula with the goal of obtaining land cessions and creating Indian reservations. In 1855

1403-718: The Mississippi (3.22 million km ), and the Río de la Plata (3.17 million km ). The three rivers that drain the most water, from most to least, are the Amazon, Ganges , and Congo rivers. Endorheic basin are inland basins that do not drain to an ocean. Endorheic basins cover around 18% of the Earth's land. Some endorheic basins drain to an Endorheic lake or Inland sea . Many of these lakes are ephemeral or vary dramatically in size depending on climate and inflow. If water evaporates or infiltrates into

1464-781: The Nile River ), Southern , Central, and Eastern Europe , Turkey , and the coastal areas of Israel , Lebanon , and Syria . The Arctic Ocean drains most of Western Canada and Northern Canada east of the Continental Divide , northern Alaska and parts of North Dakota , South Dakota , Minnesota , and Montana in the United States, the north shore of the Scandinavian peninsula in Europe, central and northern Russia, and parts of Kazakhstan and Mongolia in Asia , which totals to about 17% of

1525-506: The groundwater . A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. Braden Creek Braden Creek is a stream in the U.S. state of Washington . Braden Creek was named after L. E. Braden, a pioneer settler. 47°44′27″N 124°21′23″W  /  47.74083°N 124.35639°W  / 47.74083; -124.35639 This article related to

1586-758: The Andes. The Indian Ocean 's drainage basin also comprises about 13% of Earth's land. It drains the eastern coast of Africa, the coasts of the Red Sea and the Persian Gulf , the Indian subcontinent , Burma, and most parts of Australia . The five largest river basins (by area), from largest to smallest, are those of the Amazon (7 million km ), the Congo (4 million km ), the Nile (3.4 million km ),

1647-701: The Atlantic. The Caribbean Sea and Gulf of Mexico basin includes most of the U.S. interior between the Appalachian and Rocky Mountains , a small part of the Canadian provinces of Alberta and Saskatchewan , eastern Central America , the islands of the Caribbean and the Gulf, and a small part of northern South America. The Mediterranean Sea basin, with the Black Sea , includes much of North Africa , east-central Africa (through

1708-509: The British fur trader Charles William Barkley , captain of the Imperial Eagle , dispatched a boat up the Hoh River to trade with the natives. The boat's crew of six were killed by the Hoh people, according to European histories. The incident led to the naming of Destruction Island . Barkley named the river Destruction River, but the name became attached to the island instead. The Hoh people deny

1769-461: The Hoh Reservation on the south side of the mouth of the Hoh River. Early pioneers wishing to settle in the Hoh River valley faced numerous challenges including the dense forest and enormous trees, regular large-scale flooding, isolation from markets, and the impracticality of navigating the Hoh River due to its swift current, floods, and frequent logjams. Nevertheless, land relatively far upriver

1830-540: The Hoh River Trail near the Olympus Ranger Station and ascends to Hoh Lake and Bogachiel Peak , then across High Divide into the Sol Duc River valley. The Oil City Trail, managed by Olympic National Park, begins on the north side of the mouth of the Hoh River and runs about a mile to the Pacific coast. People can hike north along the coast to Hoh Head and beyond. Drainage basin A drainage basin

1891-599: The Hoh River Valley are entirely gone today. On the north side of the mouth of the Hoh River, across from the Hoh Indian Reservation, the town of Oil City was established in 1911 by Frank W. Johnson and the Olympic Oil Company. Natives had already discovered the oil, which seeps to the surface. This was to be a deep water oil port. Many of the lots were bought on the hopes of oil prosperity, but some were used for vacation homes. Oil drilling operations were conducted by

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1952-427: The Hoh River from Willoughby Creek Campground to the national park. In the region near the national park boundary the Hoh River occupies a U-shaped valley with a flat bottom about one mile across. Mountain slopes rise steeply on either side. The Hoh River continues flowing west, collecting numerous tributary streams, the most important being the South Fork Hoh River, which joins the main Hoh at about river mile 31. About

2013-637: The Ice River, which flows from the nearby Ice River Glacier on Mount Mercury. Mount Tom Creek, a tributary which joins the Hoh farther downstream, has its source in a western arm of the White Glacier as well. Other headwater tributaries include Elkhorn Creek and Cream Lake Creek, both of which originate from the Bailey Range . About a mile below the Glacier Creek confluence, at approximately Hoh river mile 48,

2074-649: The Milwaukee Oil Co., the Washington Oil Co., the Jefferson Oil Co. and others in the surrounding areas. No significant commercial oil reserves were found. Later, two-thirds of the platted city were returned to the state which now forms part of the Olympic Wilderness Park. http://www.historylink.org/index.cfm?DisplayPage=output.cfm&file_id=7446 A significant part of the Hoh River flows through

2135-660: The National Park Service, begins at the national park's Hoh Rain Forest Visitor Center at the end of the Upper Hoh Road. The trail follows the Hoh River east into the heart of the park. After 17.5 mi (28.2 km) it reaches Glacier Meadows near Mount Olympus's Blue Glacier . The Hoh River Trail begins at an altitude of about 600 ft (180 m) and the trail is mostly flat for about 13 mi (21 km), after which it ascends steeply to Glacier Meadows, altitude 4,300 ft (1,300 m). The trail passes through

2196-598: The US, interstate compacts ) or other political entities in a particular drainage basin to manage the body or bodies of water into which it drains. Examples of such interstate compacts are the Great Lakes Commission and the Tahoe Regional Planning Agency . In hydrology , the drainage basin is a logical unit of focus for studying the movement of water within the hydrological cycle . The process of finding

2257-404: The United States. It is one of the most popular destinations of Olympic National Park. Giant Western Hemlock , Douglas-fir , Thuja plicata (Western Red Cedar), and Sitka Spruce trees dominate the landscape, while ferns and mosses cloak the trees and forest floor. Fallen trees often become nurse logs . When Olympic National Park was created in 1938 one of its primary objectives was to protect

2318-533: The Washington Department of Fish and Wildlife [1] . Land administration within the Hoh River's watershed, approximately, is 57.6% National Park Service (171.7 sq mi (445 km)), 24.4% state (72.6 sq mi (188 km)), 17.6% private (52.5 sq mi (136 km)), 0.22% National Forest (0.64 sq mi (1.7 km)), and 0.21% Hoh Indian Reservation (0.63 sq mi (1.6 km)). The Hoh River Trail, managed by

2379-406: The basin, it can form tributaries that change the structure of the land. There are three different main types, which are affected by the rocks and ground underneath. Rock that is quick to erode forms dendritic patterns, and these are seen most often. The two other types of patterns that form are trellis patterns and rectangular patterns. Rain gauge data is used to measure total precipitation over

2440-517: The coast to the mouth of the Hoh River where many were captured and taken captive by the Hoh people. Those who evaded capture fled up the Hoh River. They built a small blockhouse and survived into the winter. In February they surrendered to the Hoh tribe at the mouth of the Hoh River. The captives were exchanged and traded among the coastal tribes, with most ending up with the Makah in the Neah Bay area. In 1810

2501-430: The discharge of water from a basin may be made by a stream gauge located at the basin's outlet. Depending on the conditions of the drainage basin, as rainfall occurs some of it seeps directly into the ground. This water will either remain underground, slowly making its way downhill and eventually reaching the basin, or it will permeate deeper into the soil and consolidate into groundwater aquifers. As water flows through

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2562-441: The drainage area is dependent on the soil type. Certain soil types such as sandy soils are very free-draining, and rainfall on sandy soil is likely to be absorbed by the ground. However, soils containing clay can be almost impermeable and therefore rainfall on clay soils will run off and contribute to flood volumes. After prolonged rainfall even free-draining soils can become saturated , meaning that any further rainfall will reach

2623-692: The drainage basin to the mouth, and may accumulate there, disturbing the natural mineral balance. This can cause eutrophication where plant growth is accelerated by the additional material. Because drainage basins are coherent entities in a hydrological sense, it has become common to manage water resources on the basis of individual basins. In the U.S. state of Minnesota , governmental entities that perform this function are called " watershed districts ". In New Zealand, they are called catchment boards. Comparable community groups based in Ontario, Canada, are called conservation authorities . In North America, this function

2684-435: The ground and along rivers it can pick up nutrients , sediment , and pollutants . With the water, they are transported towards the outlet of the basin, and can affect the ecological processes along the way as well as in the receiving water body . Modern use of artificial fertilizers , containing nitrogen (as nitrates ), phosphorus , and potassium , has affected the mouths of drainage basins. The minerals are carried by

2745-744: The ground at its terminus, the area can go by several names, such playa, salt flat, dry lake , or alkali sink . The largest endorheic basins are in Central Asia , including the Caspian Sea , the Aral Sea , and numerous smaller lakes. Other endorheic regions include the Great Basin in the United States, much of the Sahara Desert , the drainage basin of the Okavango River ( Kalahari Basin ), highlands near

2806-415: The herds of Roosevelt elk . Today about 400 of the park's 4,000–5,000 elk live in the Hoh River valley. The Hoh River supports a variety of salmonid fish, including spring and fall chinook , coho salmon, winter and summer steelhead , and sea-run coastal cutthroat trout . There are also smaller numbers of chum and sockeye salmon. The Hoh River fishery is managed by the Hoh tribe in cooperation with

2867-472: The name of the Hoh tribe both ultimately come from the Quinault placename /húx/. The source of the Hoh River is meltwater from Hoh Glacier on the northeast side of Mount Olympus. The river flows north then west, curving around the entire north side of the mountain. It collects headwater tributaries from other glaciers on Mount Olympus including Glacier Creek, which flows from Blue Glacier and White Glacier , and

2928-418: The rainfall on the area of land included in its polygon. These polygons are made by drawing lines between gauges, then making perpendicular bisectors of those lines form the polygons. The isohyetal method involves contours of equal precipitation are drawn over the gauges on a map. Calculating the area between these curves and adding up the volume of water is time-consuming. Isochrone maps can be used to show

2989-625: The responsibility of the countries sharing it. Nile Basin Initiative , OMVS for Senegal River , Mekong River Commission are a few examples of arrangements involving management of shared river basins. Management of shared drainage basins is also seen as a way to build lasting peaceful relationships among countries. The catchment is the most significant factor determining the amount or likelihood of flooding . Catchment factors are: topography , shape, size, soil type, and land use (paved or roofed areas). Catchment topography and shape determine

3050-461: The river rather than being absorbed by the ground. If the surface is impermeable the precipitation will create surface run-off which will lead to higher risk of flooding; if the ground is permeable, the precipitation will infiltrate the soil. Land use can contribute to the volume of water reaching the river, in a similar way to clay soils. For example, rainfall on roofs, pavements , and roads will be collected by rivers with almost no absorption into

3111-474: The south side of Mount Olympus. It flows generally west through Olympic National Park collecting many tributary streams. At about river mile 11 it enters a broad glacially carved U-shaped valley and becomes braided. The South Fork leaves Olympic National Park at approximately river mile 4, entering Olympic National Forest. It turns slightly northwest and joins the main Hoh River at approximately Hoh river mile 31. South Fork Campground, managed by Washington State DNR,

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3172-475: The south, then Alder Creek from the north, then Winfield Creek from the south, after which the Hoh River flows through a large horseshoe bend located at about river mile 15. Hell Roaring Creek joins the horseshoe bend from the north. Three campgrounds are sited along the river upstream from the horseshoe bend, including Minnie Peterson, Willoughby Creek, and Hoh Oxbow. All three are managed by Washington State Department of Natural Resources (DNR). Hoh Ox Bow Campground

3233-418: The speed with which the runoff reaches a river. A long thin catchment will take longer to drain than a circular catchment. Size will help determine the amount of water reaching the river, as the larger the catchment the greater the potential for flooding. It is also determined on the basis of length and width of the drainage basin. Soil type will help determine how much water reaches the river. The runoff from

3294-617: The story, saying they never massacred ship-wrecked sailors. In 1808 the Russian American Company set two vessels south from Russian America as part of an effort to expand Russian control south to the Columbia River and beyond. One of the vessels, the schooner Sv. Nikolai ran aground at Rialto Beach, north of the Quillayute River . Tension between the crew and the local Hohs led to battle. The Russians fled south along

3355-415: The time taken for rain to reach the river, while catchment size, soil type, and development determine the amount of water to reach the river. Generally, topography plays a big part in how fast runoff will reach a river. Rain that falls in steep mountainous areas will reach the primary river in the drainage basin faster than flat or lightly sloping areas (e.g., > 1% gradient). Shape will contribute to

3416-477: The time taken for runoff water within a drainage basin to reach a lake, reservoir or outlet, assuming constant and uniform effective rainfall. Drainage basins are the principal hydrologic unit considered in fluvial geomorphology . A drainage basin is the source for water and sediment that moves from higher elevation through the river system to lower elevations as they reshape the channel forms. Drainage basins are important in ecology . As water flows over

3477-411: The trailhead for the Hoh River Trail. This hiking trail follows the river 12 miles through the Hoh Rain Forest to the base of Mount Olympus, and then continues to climb steeply another 6 miles to Glacier Meadows campsite, and the start of the primary climbing route for Mount Olympus. Logjams in the river channel are common, resulting in quiet pools and new river braids being formed. The river's name and

3538-483: The valley broadens and the Hoh begins to take on the braided channel characteristic of a bottomland river. Falls Creek joins from the south, then Slate Creek and Hoh Creek from the north. Olympus Ranger Station, a National Park Service cabin, is located on the north side of the river at approximately river mile 45, near the junction of the Hoh River Trail and the Hoh Lake Trail. The Happy Four backcountry camping area

3599-753: The world's land. Just over 13% of the land in the world drains to the Pacific Ocean . Its basin includes much of China, eastern and southeastern Russia, Japan, the Korean Peninsula , most of Indochina, Indonesia and Malaysia, the Philippines, all of the Pacific Islands , the northeast coast of Australia , and Canada and the United States west of the Continental Divide (including most of Alaska), as well as western Central America and South America west of

3660-488: Was established in 1863 and the treaty signature tribes were expected to move there. The Hoh, however, refused to move. In 1872 the Indian agent R.H. Milroy explained that the Hoh did not believe they had agreed to cede their land and that the treaty signed had been explained to them as being an agreement about keeping peace with U.S. citizens and allowing them to enter the Hoh's territory and trade for furs. In 1893 President Grover Cleveland signed an executive order establishing

3721-418: Was settled. The area now within Olympic National Park was never inhabited by non-indigenous people. By 1900 the population in the Hoh River Valley was enough to warrant two post offices, one established in 1897, the other in 1904. Over time the population dwindled. By 1919 there were few people left. Abandoned structures rapidly deteriorated in the wet environment. The few historic structures that used to exist in

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