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. 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 a hierarchical pattern.
An endorheic basin is a drainage basin that normally retains water and allows no outflow to other, external bodies of water ; instead, the water drainage flows into permanent and seasonal lakes and swamps that equilibrate through evaporation. Endorheic basins also are called closed basins, terminal basins, and internal drainage systems.
The South Saskatchewan River is a major river in the Canadian provinces of Alberta and Saskatchewan. The river begins at the confluence of the Bow and Oldman Rivers in southern Alberta and ends at the Saskatchewan River Forks in central Saskatchewan. The Saskatchewan River Forks is the confluence of the South and North Saskatchewan Rivers and is the beginning of the Saskatchewan River.
The Peace–Athabasca Delta, located in northeast Alberta, is the largest freshwater inland river delta in North America. It is located partially within the southeast corner of Wood Buffalo National Park, Canada's largest national park, and also spreads into the Regional Municipality of Wood Buffalo, west and south of the historical community of Fort Chipewyan. The delta encompasses approximately 321,200 ha, formed where the Peace and Athabasca rivers converge on the Slave River and Lake Athabasca. The delta region is designated a wetland of international importance and a UNESCO World Heritage Site. The region is large enough that it is considered one of twenty distinct natural subregions of Alberta by the provincial government's Natural Regions Committee.
The Red Deer River is a river in Alberta and a small portion of Saskatchewan, Canada. It is a major tributary of the South Saskatchewan River and is part of the larger Saskatchewan / Nelson system that empties into Hudson Bay.
The North Saskatchewan River is a glacier-fed river that flows from the Canadian Rockies continental divide east to central Saskatchewan, where it joins with the South Saskatchewan River to make up the Saskatchewan River. Its water flows eventually into the Hudson Bay.
Bistcho Lake is a large lake in northwestern Alberta, Canada.
The Sikome Aquatic Facility, commonly referred to as Sikome Lake, is a man-made lake in the city of Calgary, Alberta, Canada. It is located in the southeast quadrant of the city, within the Fish Creek Provincial Park, and is part of the Bow River basin. It lies at an elevation of 1,005 m (3,297 ft) and has a surface of 0.4 km2.
Manitou Lake is a salt lake located mostly in the RM of Manitou Lake No. 422 in the Canadian province of Saskatchewan, about 10 kilometres (6.2 mi) east of the provincial border with Alberta. The eastern shore of the lake is in the RM of Hillsdale No. 440. Manitou Lake is located in a region called the Prairie Pothole Region of North America, which extends throughout three Canadian provinces and five U.S. states. It is also within Palliser's Triangle and the Great Plains ecoregion. Manitou Lake is part of an Important Bird Area (IBA) of Canada that covers 699.66 km2 (270.14 sq mi) of land and serval neighbouring lakes.
McGregor Lake is an elongated reservoir in Southern Alberta. McGregor Lake was created in 1920 by the completion of two dams bracketing water flowing through in Snake Valley. It is situated 100 km (62 mi) southeast of Calgary in the Vulcan County.
Lake Bassano was a proglacial lake that formed in the Late Pleistocene during the deglaciation of south-central Alberta by the impoundment of a re-established drainage system and addition of glacial meltwater. It is associated with the development of through-flowing drainage within the Red Deer River basin in particular, and the South Saskatchewan drainage network in general. Approximately 7,500 square kilometres (2,900 sq mi) of the Bassano basin is covered with lacustrine sediments. These sediments are bordered by the topographically higher Buffalo Lake Moraine to the west, the Suffield Moraine to the east and the Lethbridge Moraine to the south.
Ghost Lake is a reservoir in Western Alberta, Canada, formed along the Bow River. It is located approximately 45 km (28 mi) west of the city of Calgary and immediately west of Cochrane. It has a water surface of 11.6 km2 (4.5 sq mi) and a drainage basin of 6,460 km2 (2,490 sq mi) The average depth of the lake is 14.5 m (48 ft), and it reaches a maximum of 34 m (112 ft)
The Muskeg Formation is a geologic formation of Middle Devonian (Givetian) age in the Western Canada Sedimentary Basin. It extends from the plains of northwestern Alberta to northeastern British Columbia, and includes important petroleum and natural gas reservoirs in the Zama lake and Rainbow Lake areas of northwestern Alberta.
Brazeau Reservoir is a large man made reservoir in Alberta, Canada.
The Beaverhill Lake Group is a geologic unit of Middle Devonian to Late Devonian age in the Western Canada Sedimentary Basin that is present in the southwestern Northwest Territories, northeastern British Columbia and Alberta. It was named by the geological staff of Imperial Oil in 1950 for Beaverhill Lake, Alberta, based on the core from a well that they had drilled southeast of the lake, near Ryley, Alberta.
The Mann Lakes are two close basin lakes in Alberta. Once a single lake named Mann Lake, the construction of Highway 28 in 1961 split the lake in two. The more southerly Upper Mann Lake lies at 54°08′37″N111°30′57″W, and just north of it, the more northerly Lower Mann Lake at 54°10′N111°30′W. Since 1980, their water level has been steadily declining.
Lake Winnipeg has experienced excessive algae blooms since the 1990s. The lake's toxic blue-green algae has led to a deterioration of water quality, posing hazards to both human and animal ecosystems. The blooms are caused by high concentrations of nitrogen and phosphorus from fertilizer runoff and sewage draining into the lake via rivers and surface runoff.
Lake Stanley, also called the Stanley unconformity, is a postglacial freshwater lake that occupied part of what is now the basin of Lake Huron during a hydrologically significant period from 10,000 years Before Present (B.P.). The lake’s surface level was approximately 70 meters below the current lake’s water surface.
