The Fraser Lowland is a landform and physiographic region in the Pacific Northwest of North America , shared between the Canadian province of British Columbia and the U.S. state of Washington . The region includes much of the Lower Mainland region of British Columbia, and the coastal plains of Washington's Whatcom County . As a physiographic region, the Fraser Lowland is part of the Georgia Depression , which in turn is part of the Coastal Trough.
53-586: The eponymous Fraser River in the Lowland's north and the lower basins of its tributaries (mainly the Pitt River , Coquitlam River and Vedder / Chilliwack Rivers ), as well as the entire catchment of the oppositely flowing Sumas River , are the Lowland's primary river system . However, the region also includes the lower Nooksack River basin ("Nooksack Lowland") south of the Canada–US border , which belongs to
106-786: A completely separate river system arising from the southeast in the namesaked valleys around the North Cascades ' Mount Shuksan , Baker and Twin Sisters . Overall, the Fraser Lowland encompasses all the fertile low-lying fluvial plains between and around the Fraser and Nooksack rivers, including the Sumas Prairie , the Burrard Peninsula , and sometimes also the North Shore lowlands around
159-601: A line running from East Point on Saturna Island to Patos Island , Sucia Island , and Matia Island , then to Point Midgley on Lummi Island . This line touches the northern edges of Rosario Strait , which leads south to the Strait of Juan de Fuca , and Boundary Pass , which leads south to Haro Strait and the Strait of Juan de Fuca. The Strait of Georgia has a mean depth of 156 m (512 ft) and average surface area of 6,800 km (2,600 sq mi). The Ballenas Basin in
212-615: A navigable stream". His trip down the river convinced him that Fort Langley could not replace Fort Vancouver as the company's main depot on the Pacific coast. Much of British Columbia's history has been bound to the Fraser, partly because it was the essential route between the Interior and the Lower Coast after the loss of the lands south of the 49th Parallel with the Oregon Treaty of 1846. It
265-650: A regional position within the Canadian Heraldic Authority is named after the river. The Fraser River is known for the fishing of white sturgeon , all five species of Pacific salmon ( chinook , coho , chum , pink , sockeye ), as well as steelhead trout . The Fraser River is also the largest producer of salmon in Canada. A typical white sturgeon catch can average about 500 pounds (230 kg). A white sturgeon weighing an estimated 500 kilograms (1,100 lb) and measuring 3.76 metres (12 ft 4 in)
318-689: A short dam lifespan, but mostly because of strong opposition from fisheries and other environmental concerns. In 1858, the Fraser River and surrounding areas were occupied when the gold rush came to the Fraser Canyon and the Fraser River. It is also a popular fishing location for residents of the Lower Mainland. The delta of the river, especially in the Boundary Bay area, is an important stopover location for migrating shorebirds . The Fraser Herald ,
371-442: A significant spring freshet , primarily impacting regions around Prince George , Kamloops , Hope and Surrey . Due to record snowpacks on the mountains in the Fraser River catch basin which began melting, combined with heavy rainfall, water levels on the Fraser River rose in 2007 to a level not reached since 1972. Low-lying land in areas upriver such as Prince George suffered minor flooding. Evacuation alerts were given for
424-570: Is a constituent part of the Salish Sea . Archipelagos and narrow channels mark each end of the Strait of Georgia, the Gulf Islands and San Juan Islands in the south, and the Discovery Islands in the north. The main channels to the south are Boundary Pass , Haro Strait and Rosario Strait , which connect the Strait of Georgia to the Strait of Juan de Fuca . In the north, Discovery Passage
477-686: Is joined by the Bridge and Seton Rivers at the town of Lillooet , then by the Thompson River at Lytton , where it proceeds south until it is approximately 64 kilometres (40 mi) north of the 49th parallel , which is Canada's border with the United States . From Lytton southwards it runs through a progressively deeper canyon between the Lillooet Ranges of the Coast Mountains on its west and
530-459: Is named Queensborough and is part of the City of New Westminster. Also in the lowermost Fraser, among other smaller islands, is Annacis Island , an important industrial and port area, which lies to the southeast of the eastern end of Lulu Island. Other notable islands in the lower Fraser are Barnston Island , Matsqui Island , Nicomen Island and Sea Bird Island . Other islands lie on the outer side of
583-595: Is part of the Fraser Lowland and was formed also by sediment deposited from the Fraser, though most of the county is not in the Fraser drainage basin. Similar to the Columbia River Gorge east of Portland, Oregon , the Fraser exploits a topographic cleft between two mountain ranges separating a more continental climate (in this case, that of the British Columbia Interior ) from a milder climate near
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#1732837270800636-521: Is the main channel connecting the Strait of Georgia to Johnstone Strait . The strait is a major navigation channel on the west coast of North America , owing to the presence of the port of Vancouver , and also due to its role as the southern entrance to the Intracoastal route known as the Inside Passage . The United States Geological Survey defines the southern boundary of the Strait of Georgia as
689-563: The BC Ferries system cross the strait, between Tsawwassen (south of Vancouver) and Swartz Bay (near Victoria ) and between Horseshoe Bay (north of Vancouver) and Nanaimo . The Strait of Georgia is known as a premier scuba diving and whale watching location. In 1967, the Georgia Strait inspired the name of Vancouver's alternative newspaper, The Georgia Straight , which has been published continuously since. Towns and cities on
742-520: The Burrard Inlet . The American pene-exclave of Point Roberts lies to the region's west, at the southern end of the Tsawwassen peninsula . The Fraser Lowland is roughly triangular and about 3,500 square kilometres (1,400 sq mi) in total area. The Strait of Georgia coastline between Burrard Inlet in the north and Bellingham Bay in the south marks its western/southwestern boundary, and
795-464: The Cascade Range on its east. Hell's Gate , located immediately downstream of the town of Boston Bar , is a famous portion of the canyon where the walls narrow dramatically, forcing the entire volume of the river through a gap only 35 metres (115 feet) wide. An aerial tramway takes visitors out over the river. Hells Gate is visible from Trans-Canada Highway 1 about 2 km (1.2 mi) south of
848-470: The Georgia Strait is an arm of the Salish Sea between Vancouver Island and the extreme southwestern mainland coast of British Columbia , Canada, and the extreme northwestern mainland coast of Washington , United States . It is approximately 240 kilometres (150 mi) long and varies in width from 20 to 58 kilometres (12 to 36 mi). Along with the Strait of Juan de Fuca and Puget Sound , it
901-557: The Hudson's Bay Company 's main Pacific depot. Simpson had believed the Fraser River might be navigable throughout its length, even though Simon Fraser had described it as non-navigable. Simpson journeyed down the river and through the Fraser Canyon and afterwards wrote "I should consider the passage down, to be certain Death, in nine attempts out of Ten. I shall therefore no longer talk about it as
954-579: The Lower Mainland ( Fraser Valley and Metro Vancouver ) occurred in 1894. With no protection against the rising waters of the Fraser River, Fraser Valley and Metro Vancouver communities from Chilliwack downstream were inundated with water. In the 1894 floods, the water mark at Mission reached 7.85 metres (25.75 ft). After the 1894 flood, a dyking system was constructed throughout the Fraser Valley. The dyking and drainage projects greatly improved
1007-526: The Mount Robson Provincial Park , to Steveston in Vancouver at the river mouth. With an average flow at the mouth of about 3,475 cubic metres per second (122,700 cu ft/s), the Fraser is the largest river by discharge flowing into the Pacific seaboard of Canada and the fifth largest in the country. The average flow is highly seasonal; summer discharge rates can be ten times larger than
1060-720: The Rocky Mountain Trench and the Robson Valley near Valemount . After running northwest past 54° north, it makes a sharp turn to the south at Giscome Portage , meeting the Nechako River at the city of Prince George , then continues south, progressively cutting deeper into the Fraser Plateau to form the Fraser Canyon from roughly the confluence of the Chilcotin River , near the city of Williams Lake , southwards. It
1113-564: The San Juan Islands , gaining strength over the open water of the Strait of Juan de Fuca . The estuary at the river's mouth is a site of hemispheric importance in the Western Hemisphere Shorebird Reserve Network . The Water Survey of Canada currently operates 17 gauge stations that measure discharge and water level along the majority of the mainstem from Red Pass just downstream of Moose Lake in
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#17328372708001166-514: The Strait of Georgia just south of the City of Vancouver . The river's annual discharge at its mouth is 112 cubic kilometres (27 cu mi) or 3,550 cubic metres per second (125,000 cu ft/s), and each year it discharges about 20 million tons of sediment into the ocean. The river is named after Simon Fraser , who led an expedition in 1808 on behalf of the North West Company from
1219-463: The "Gulf of Georgia" by George Vancouver of Great Britain , during his extensive expedition along the west coast of North America . Vancouver designated the mainland in this region as New Georgia and areas farther north as New Hanover and New Bremen. The June 23, 1946, Vancouver Island earthquake shocked the Strait of Georgia region, causing the bottom of Deep Bay to sink between 3 and 26 m (9.8 and 85.3 ft). The two busiest routes of
1272-458: The Georgia Strait proper, such as the inter-insular straits and channels of the Gulf Islands , and may refer to communities on the shore of southern Vancouver Island. As defined by George Vancouver in 1792, the Gulf of Georgia included all the inland waters beyond the eastern end of the Strait of Juan de Fuca, including Puget Sound , Bellingham Bay , the waters around the San Juan Islands , as well as
1325-630: The Lowland (the Nooksack Lowland and all the upper Sumas River basin south of Sumas ) is about 200,000. It is dominated by the coastal city of Bellingham at the Lowland's southernmost tip. Fraser River The Fraser River ( / ˈ f r eɪ z ər / ) is the longest river within British Columbia , Canada, rising at Fraser Pass near Blackrock Mountain in the Rocky Mountains and flowing for 1,375 kilometres (854 mi), into
1378-577: The North Arm, which is the southern boundary of the City of Vancouver , and the South Arm, which divides the City of Richmond from the City of Delta to the south. Richmond is on the largest island in the Fraser, Lulu Island and also on Sea Island , which is the location of Vancouver International Airport , where the Middle Arm branches off to the south from the North Arm. The far eastern end of Lulu Island
1431-476: The Strait of Georgia. First Nations communities have surrounded the Strait of Georgia for thousands of years. The first European exploration of the area was undertaken by Captain Jose Maria Narvaez and Pilot Juan Carrasco of Spain in 1791. At this time Francisco de Eliza gave the strait the name "Gran Canal de Nuestra Señora del Rosario la Marinera." In 1792, it was renamed for King George III as
1484-582: The area and population are much larger on the Canadian side (Fraser Valley and Sumas Prairie) with about 2.4 million residents. The main population center is Greater Vancouver at the northwestern end of the Fraser Lowland. Other population centers on the Canadian side include Abbotsford and Chilliwack , both part of the Fraser Valley Regional District . The population on the American side of
1537-595: The centre of the strait reaches a maximum depth of 420 m (1,380 ft) approximately 15 km (9.3 mi) north of Nanaimo . The Fraser River accounts for roughly 80 percent of the freshwater entering the strait. Water circulates in the strait in a generally counterclockwise direction. The strait contains several major islands, the largest by far being Texada Island at 300.45 km (116.00 sq mi). Other major islands include Nelson Island , Denman Island , Lasqueti Island , and Hornby Island . The term "Gulf of Georgia" includes waters other than
1590-529: The coast. When an Arctic high-pressure area moves into the British Columbia Interior and a relatively low-pressure area builds over the general Puget Sound and Strait of Georgia region, the cold Arctic air accelerates southwest through the Fraser Canyon . These outflow winds can gust up to 97 to 129 kilometres per hour (60 to 80 mph) and have at times exceeded 160 kilometres per hour (100 mph). Such winds frequently reach Bellingham and
1643-408: The estuary, most notably Westham Island , a wildfowl preserve, and Iona Island , the location of the main sewage plant for the City of Vancouver. After 100 kilometres (about 60 mi), the Fraser forms a delta where it empties into the Strait of Georgia between the mainland and Vancouver Island . The lands south of the City of Vancouver , including the cities of Richmond and Delta , sit on
Fraser Lowland - Misplaced Pages Continue
1696-469: The first Europeans to find and enter it. The existence of the river, but not its location, had been deduced during the 1791 voyage of José María Narváez , under Francisco de Eliza . The upper reaches of the Fraser River were first explored by Sir Alexander Mackenzie in 1793, and fully traced by Simon Fraser in 1808, who confirmed that it was not connected with the Columbia River . The lower Fraser
1749-627: The flat flood plain . The islands of the delta include Iona Island, Sea Island, Lulu Island, Annacis Island, and a number of smaller islands. While the vast majority of the river's drainage basin lies within British Columbia, a small portion in the drainage basin lies across the international border in Washington in the United States, namely the upper reaches of the tributary Chilliwack and Sumas rivers. Most of lowland Whatcom County, Washington
1802-517: The flood problems, but over time, the dykes were allowed to fall into disrepair and became overgrown with brush and trees. With some dykes constructed of a wooden frame, they gave way in 1948 in several locations, marking the second disastrous flood. Flooding since 1948 has been minor in comparison. 1948 saw massive flooding in Chilliwack and other areas along the Fraser River. The high-water mark at Mission rose to 7.5 metres (24.7 ft). The peak flow
1855-551: The flow during the winter. The Fraser's highest recorded flow, in June 1894, is estimated to have been 17,000 cubic metres per second (600,000 cu ft/s) at Hope . It was calculated using high-water marks near the hydrometric station at Hope and various statistical methods. In 1948 the Fraser River Board adopted the estimate for the 1894 flood. It remains the value specified by regulatory agencies for all flood control work on
1908-520: The low-lying areas not protected by dikes in the Lower Mainland . However, the water levels did not breach the dikes, and major flooding was averted. Major flooding occurred in November 2021 as part of the November 2021 Pacific Northwest floods . Tributaries are listed from the mouth of the Fraser and going up river. Strait of Georgia The Strait of Georgia ( French : Détroit de Géorgie ) or
1961-431: The mainland are separated from Georgia Strait itself by islands and lesser straits but are often spoken of as being in the Strait of Georgia region. BC Ferries operates ferry services connecting Vancouver Island with the mainland. Notable lines include Duke Point - Tsawwassen , Departure Bay - Horseshoe Bay , and Little River - Westview . Minor ferry operators and water taxis provide service to minor islands dotting
2014-511: The name had a different definition, combining of the Strait of Juan de Fuca and Puget Sound as well as the Strait of Georgia and related waters under the name Salish Sea. This latter definition was made official in 2009 by geographic boards of Canada and the United States. In October 2009, the Washington state Board of Geographic Names approved the Salish Sea toponym, not to replace the names of
2067-437: The poorly maintained dyke systems failed to contain the water. At the height of the 1948 flood, 200 square kilometres (50,000 acres) stood under water. Dykes broke at Agassiz, Chiliwack, Nicomen Island, Glen Valley and Matsqui. When the flood waters receded a month later, 16,000 people had been evacuated, with damages totaling $ 20 million, about $ 225 million in 2020 dollars. Major flooding occurred once again in 1972 due to
2120-645: The region extends east through the generally flat terrain between the Coast Mountains to the north and the Vedder Mountain / Cascade Range to the southeast, all the way to the easternmost end of the Fraser Valley near Hope , where the Coquihalla River drains into the Fraser River at the latter's westward bends out of the Fraser Canyon . The Canadian Sumas and the Chilliwack Mountain stand out on
2173-476: The river was designated as a Canadian Heritage River for its natural and human heritage. It remains the longest river with that designation. The Fraser is heavily exploited by human activities, especially in its lower reaches. Its banks are rich farmland, its water is used by pulp mills , and a few dams on some tributaries provide hydroelectric power . The main flow of the Fraser has never been dammed partly because its high level of sediment flows would result in
Fraser Lowland - Misplaced Pages Continue
2226-585: The river, not dissimilar to the Dakelh name, is ʔElhdaqox , meaning Sturgeon ( ʔElhda-chugh ) River ( Yeqox ) . The Fraser drains a 220,000-square-kilometre (85,000 sq mi) area. Its source is a dripping spring at Fraser Pass in the Canadian Rocky Mountains near the border with Alberta . The river then flows north to the Yellowhead Highway and west past Mount Robson to
2279-454: The river. Further studies and hydraulic models have estimated the maximum discharge of the Fraser River, at Hope during the 1894 flood, as within a range of about 16,000 to 18,000 cubic metres per second (570,000 to 640,000 cu ft/s). On June 14, 1792, the Spanish explorers Dionisio Alcalá Galiano and Cayetano Valdés entered and anchored in the North Arm of the Fraser River, becoming
2332-521: The site of present-day Prince George almost to the mouth of the river. The river's name in the Halqemeylem (Upriver Halkomelem) language is Sto:lo , often seen archaically as Staulo , and has been adopted by the Halkomelem-speaking peoples of the Lower Mainland as their collective name, Sto:lo . The river's name in the Dakelh language is Lhtakoh . The Tsilhqot'in name for
2385-470: The southbank of the Fraser River, in the middle of the eastern Fraser Lowland, demarcating the Fraser Valley into its "Upper" and "Lower" parts. The rich soil , plentiful precipitation , and mild marine climate make the entire region a prime agricultural land. Much has been cultivated for farmland . The Fraser Lowland is politically divided by the Canada–United States border into two parts. Both
2438-405: The strait include Campbell River , Courtenay , Comox , Qualicum Beach , Parksville , Lantzville , and Nanaimo on the western shore, as well as Powell River , Sechelt, Gibsons , and Greater Vancouver on the east. Across the border in the United States , Bellingham, Washington and other communities also lie on the eastern shore. Other settlements on Vancouver Island (such as Duncan ) and
2491-551: The strait. In March 2008, the Chemainus First Nation proposed renaming the strait the " Salish Sea ", an idea that reportedly met with approval by B.C.'s Aboriginal Relations Minister Mike de Jong , who pledged to put it before the B.C. cabinet for discussion. Making the name "Salish Sea" official required a formal application to the Geographical Names Board of Canada . A parallel American movement promoting
2544-705: The tramway. Simon Fraser was forced to portage the gorge on his trip through the canyon in June 1808. At Yale , at the head of navigation on the river, the canyon opens up and the river widens, though without much adjoining lowland until Hope , where the river then turns west and southwest into the Fraser Valley , a lush lowland valley, and runs past Chilliwack and the confluence of the Harrison and Sumas Rivers , bending northwest at Abbotsford and Mission . The Fraser then flows past Maple Ridge , Pitt Meadows , Port Coquitlam , and north Surrey . It turns southwest again just east of New Westminster , where it splits into
2597-454: Was about 15,600 cubic meters per second. Cool temperatures in March, April, and early May had delayed the melting of the heavy snowpack that had accumulated over the winter season. Several days of hot weather and warm rains over the holiday weekend in late May hastened the thawing of the snowpack. Rivers and streams quickly swelled with spring runoff, reaching heights surpassed only in 1894. Finally,
2650-468: Was caught and released on the Fraser River in July 2012. In 2021, a white sturgeon was caught on the river weighing 890 pounds (400 kg), with a length of 352 cm (11.55 ft). It was estimated to be over 100 years old. The fish was tagged and released. The most significant Fraser river floods in recorded history occurred in 1894 and 1948. After European settlement, the first disastrous flood in
2703-576: Was revisited in 1824 when the Hudson's Bay Company sent a crew across Puget Sound from its Fort George southern post on the Columbia River . The expedition was led by James McMillan . The Fraser was reached via the Nicomekl River and the Salmon River reachable after a portage. Friendly tribes met earlier on by the Simon Fraser crew were reacquainted with. A trading post with agricultural potential
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#17328372708002756-421: Was the site of its first recorded settlements of Aboriginal people ( see Musqueam , Sto:lo , St'at'imc , Secwepemc and Nlaka'pamŭ ), the site of the first European-Indigenous mixed ancestry settlement in southern British-Columbia ( see Fort Langley ), the route of multitudes of prospectors during the Fraser Canyon Gold Rush and the main vehicle of the province's early commerce and industry. In 1998,
2809-462: Was to be located. By 1827, a crew was sent back via the mouth of the Fraser to build and operate the original Fort Langley . McMillan also led the undertaking. The trading post original location would soon become the first ever mixed ancestry and agricultural settlement in southern British Columbia on the Fraser (Sto:lo) river. In 1828 George Simpson visited the river, mainly to examine Fort Langley and determine whether it would be suitable as
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