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Black Sturgeon River (Thunder Bay District)
The Black Sturgeon River is a river in Thunder Bay District, Northwestern Ontario, Canada, located west of the Nipigon River, that flows to Lake Superior. Most of the river is protected in the Black Sturgeon River Provincial Park, a waterway park stretching from Black Sturgeon Dam north to and including the lands around Black Sturgeon Lake. History In 1959, a dam was constructed on the Black Sturgeon River in order to control water levels. The dam also prevented access to the upper reaches of the river. Many speculated that this construction is what led to the collapse of the most common fish type in the area, the walleye.Furlong, P., Foster, R.F., Colby, P.J., & Friday, M. (2006)"Black Sturgeon River Dam: A barrier to the rehabilitation of Black Bay walleye", www.thunderbayfishing.com Geography The river begins at Black Sturgeon Lake, southwest of Lake Nipigon, and flows southeast over the Split Rapids to Nonwatin Lake where the right tributary Nonwatin River and left tributa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thunder Bay District
Thunder Bay District is a district and census division in Northwestern Ontario in the Canadian province of Ontario. The district seat is Thunder Bay. In 2016, the population was 146,048. The land area is ; the population density was . Most of the district (93.5%) is unincorporated and part of the Unorganized Thunder Bay District. History Thunder Bay District was created in 1871 by provincial statute from the western half of Algoma District, named after a large bay on the north shore of Lake Superior. Its northern and western boundaries were uncertain until Ontario's right to Northwestern Ontario was determined by the Judicial Committee of the Privy Council. Until about 1902 it was often called Algoma West from the name of the provincial constituency established in 1885. The following districts include areas that were formerly part of Thunder Bay District: * Rainy River, created in 1885 * Kenora, created in 1907 from Rainy River District * Cochrane, created in 1921 Subdivisio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joint (geology)
A rock in Abisko fractured along existing joints possibly by mechanical frost weathering A joint is a break (fracture) of natural origin in a layer or body of rock that lacks visible or measurable movement parallel to the surface (plane) of the fracture ("Mode 1" Fracture). Although joints can occur singly, they most frequently appear as joint sets and systems. A ''joint set'' is a family of parallel, evenly spaced joints that can be identified through mapping and analysis of their orientations, spacing, and physical properties. A ''joint system'' consists of two or more intersecting joint sets. The distinction between joints and faults hinges on the terms ''visible'' or ''measurable,'' a difference that depends on the scale of observation. Faults differ from joints in that they exhibit visible or measurable lateral movement between the opposite surfaces of the fracture ("Mode 2" and "Mode 3" Fractures). Thus a joint may be created by either strict movement of a rock la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlas Of Canada
The Atlas of Canada (french: L'Atlas du Canada) is an online atlas published by Natural Resources Canada that has information on every city, town, village, and hamlet in Canada. It was originally a print atlas, with its first edition being published in 1906 by geographer James White and a team of 20 cartographers. Much of the geospatial data used in the atlas is available for download and commercial re-use from the Atlas of Canada site or from GeoGratis. Information used to develop the atlas is used in conjunction with information from Mexico and the United States to produce collaborative continental-scale tools such as the North American Environmental Atlas The ''North American Environmental Atlas'' is an interactive mapping tool created through a partnership of government agencies in Canada, Mexico and the United States, along with the Commission for Environmental Cooperation, a trilateral internati .... External links {{Portal, Geography, Canada The Atlas of Canada * The 1915 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Resources Canada
Natural Resources Canada (NRCan; french: Ressources naturelles Canada; french: RNCan, label=none)Natural Resources Canada is the applied title under the Federal Identity Program; the legal title is Department of Natural Resources (). is the department of the Government of Canada responsible for natural resources, energy, minerals and metals, forests, earth sciences, mapping, and remote sensing. It was formed in 1994 by amalgamating the Department of Energy, Mines and Resources with the Department of Forestry. Under the ''Constitution Act, 1867'', primary responsibility for natural resources falls to provincial governments, however, the federal government has jurisdiction over off-shore resources, trade and commerce in natural resources, statistics, international relations, and boundaries. The department administers federal legislation relating to natural resources, including energy, forests, minerals and metals. The department also collaborates with American and Mexican governme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rivers Of Ontario ...
This is the list of rivers which are in and flow through Ontario. The watershed list includes tributaries as well. Dee River, flows between Three Mile Lake and Lake Rosseau. List of rivers arranged by watershed Hudson Bay Atlantic Ocean Alphabetical list of rivers See also * List of rivers of Canada *List of rivers of the Americas *Hudson Bay drainage basin *List of lakes of Ontario * Geography of Ontario References {{Canada topic, List of rivers of Ontario * Rivers A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Sturgeon River (Kenora District)
The Black Sturgeon River is a river in the Nelson River drainage basin in Kenora District, northwestern Ontario, Canada. It is a tributary of the Winnipeg River. Course The river begins at Silver Lake, and exits at the west at Crystal Bay. It flows west into the Northeast Bay of Black Sturgeon Lakes, then through the Grassy Narrows to the main part of the lake, where it takes in the left tributary Little Black Sturgeon River. The river heads into the city of Kenora and through a narrows past the communities of Lajeunesse Bridge and Pelletier Bridge, and turns north through another arm of Black Sturgeon Lakes. The river is crossed at the north end of the lake by Ontario Highway 658, where it exits the city of Kenora, then tumbles over Black Sturgeon Rapids to reach its mouth at the Winnipeg River. Tributaries *Little Black Sturgeon River (left) See also *List of rivers of Ontario This is the list of rivers which are in and flow through Ontario. The watershed list includes tri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boreal Woodland Caribou
The boreal woodland caribou (''Rangifer tarandus caribou''; but subject to a recent taxonomic revision. See Reindeer: taxonomy), also known as woodland caribou, boreal forest caribou and forest-dwelling caribou, is a North American subspecies of reindeer (or caribou in North America) found only in Canada. Unlike the Porcupine caribou and barren-ground caribou, boreal woodland caribou are primarily (but not always) sedentary. In their 2012 report entitled "Recovery Strategy for the Woodland Caribou (Rangifer tarandus caribou), Boreal population, in Canada", Environment Canada and SARA refer to the woodland caribou as "boreal caribou". "Woodland Caribou (''Rangifer tarandus caribou''), Boreal population herein referred to as "boreal caribou", assessed in May 2002 as threatened by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). The boreal woodland caribou is the third largest of the caribou ecotypes after Selkirk Mountain caribou and Osborn's caribou (see Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wildlife Corridor
A wildlife corridor, habitat corridor, or green corridor is an area of habitat connecting wildlife populations separated by human activities or structures (such as roads, development, or logging). This allows an exchange of individuals between populations, which may help prevent the negative effects of inbreeding and reduced genetic diversity (via genetic drift) that often occur within isolated populations. Corridors may also help facilitate the re-establishment of populations that have been reduced or eliminated due to random events (such as fires or disease). This may potentially moderate some of the worst effects of habitat fragmentation, wherein urbanization can split up habitat areas, causing animals to lose both their natural habitat and the ability to move between regions to use all of the resources they need to survive. Habitat fragmentation due to human development is an ever-increasing threat to biodiversity, and habitat corridors are a possible mitigation. Purpose Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mixedwood Stand
{{context, date=December 2014 A mixedwood stand is a forest type in which 26% to 75% of the canopy is made up of softwood trees.Natural Resources Canada, Canadian Forest Service. 1995. Silviculture terms in Canada (Terminologie de la sylviculture au Canada). NRCan, CFS, Ottawa, Ontario, 2nd edition. 109 p. Uncertainties of the definition, extent, and potential of mixedwood types necessitate the placement of some mensurational bounds on the subject of mixedwood management, especially the distribution and component sub-types, age classes, advance growth, productivity, and rotation ages. A major ecological factor in mixedwood management is the spruce budworm; another is the problem of providing for sufficient white spruce regeneration.Project 07-24-0 analysis, Artificial regeneration of spruce in the spruce–fir forest type of Ontario. J.B. Scarratt, Canadian Forest Service, Ontario Region, Sault Ste Marie, Ontario. E3933 The white spruce–aspen mixedwood associations of the Prair ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taiga
Taiga (; rus, тайга́, p=tɐjˈɡa; relates to Mongolic and Turkic languages), generally referred to in North America as a boreal forest or snow forest, is a biome characterized by coniferous forests consisting mostly of pines, spruces, and larches. The taiga or boreal forest has been called the world's largest land biome. In North America, it covers most of inland Canada, Alaska, and parts of the northern contiguous United States. In Eurasia, it covers most of Sweden, Finland, much of Russia from Karelia in the west to the Pacific Ocean (including much of Siberia), much of Norway and Estonia, some of the Scottish Highlands, some lowland/coastal areas of Iceland, and areas of northern Kazakhstan, northern Mongolia, and northern Japan (on the island of Hokkaidō). The main tree species, depending on the length of the growing season and summer temperatures, vary across the world. The taiga of North America is mostly spruce, Scandinavian and Finnish taiga consists of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodsia
''Woodsia'' is a genus of ferns in the order Polypodiales. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only genus in the family Woodsiaceae, placed in the suborder Aspleniineae. The family can also be treated as the subfamily Woodsioideae of a very broadly defined family Aspleniaceae ''sensu lato''. Species of ''Woodsia'' are commonly known as cliff ferns. Taxonomy Woodsiaceae formerly included the members of the families Athyriaceae and Diplaziopsidaceae, but analysis has consistently shown that they should be treated as separate families. The following cladogram for the suborder Aspleniineae (as eupolypods II), based on Lehtonen (2011), and Rothfels & al. (2012), shows a likely phylogenetic relationship between the Woodsiaceae and the other families of the Aspleniineae. Species There are about 40–50 species of the genus ''Woodsia''. , '' Plants of the World Online'' accepted the following species: *'' Woodsia alpina'' (Bolton) Gray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nipigon
Nipigon () is a township in Thunder Bay District, Northwestern Ontario, Canada, located along the west side of the Nipigon River and south of the small Lake Helen running between Lake Nipigon and Lake Superior. Lake Nipigon is located approximately north of Nipigon. Located at latitude 49.0125° N, Nipigon is the northernmost community on the North shore of Lake Superior. Nipigon is served by several transportation corridors: * Highway 11 * Highway 17, both part of the Trans-Canada Highway * Canadian Pacific Railway Geography For about 15 km, Highway 11 runs within Nipigon River and a lake. Nipigon is located northeast of Thunder Bay, southwest of Geraldton and Beardmore, west of Marathon and northwest of Sault Ste. Marie. The crater on Mars named Nipigon Crater or Crater Nipigon is named after this town. Nipigon is surrounded with pine and other varieties of forests. The power line connecting from Lake Nipigon supplies electricity to Thunder Bay and area. The oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
