Nature & Geography | The Canadian Encyclopedia

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  • Article

    Reservoir

    Reservoirs, as discussed here, do not include any type of subsurface reservoir structure that stores water, natural gas or oil.

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  • Article

    Réservoir Gouin

    Réservoir Gouin, 1570 km2, elev 404 m, max length 102 km, average depth 5 m, is a collection of hundreds of small lakes containing innumerable islands in south-central Québec, equidistant from Ottawa, Montréal and Québec City.

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  • Article

    Manicouagan Reservoir

    The Manicouagan Reservoir, 1,942 km2, elevation 360 m, is located in southeastern Quebec, about 140 km from the Labrador border. The second-largest natural lake in Quebec, it was created by a meteorite millions of years ago. The name “Manicouagan” is possibly of Innu origin and might mean “where there is bark” (for canoe making). The lake appears on Jonathan Carver’s map of Quebec (1776) as Lake Asturagamicook, and is shown to be drained by the Manicouagan or Black River.

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  • Article

    Resource Management

    Resource management usually refers to the responsibility of governments to ensure that natural resources under their jurisdiction are used wisely or conserved.

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  • Article

    Resource Rights

    Natural-resource development has played a major role in Canada's economy and continues to be a focus of national concerns.

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  • Article

    Resource Towns in Canada

    Resource towns are small, isolated communities built around resource-based industries and transportation. They include mining towns, mill towns, railway towns and fishing villages. Resource development has long been a key factor in shaping the settlement and growth of communities. Some scholars have argued that all Canadian urban growth depends on the production of natural resources. (See also Staple Thesis.) Resource towns have been important agents in this production process. Because they depend on single industries, the economies of resource towns are often unstable.

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  • Article

    Resource Use

    Since prehistoric times, the inhabitants of what is now Canada used vegetation and animals for food, clothing and shelter. They fashioned implements and ornaments from MINERALS and, after the arrival of Europeans, used furs for trading.

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  • Article

    Natural Resources in Canada

    Natural resources are aspects of the natural environment from which goods and services can be obtained and produced. They include air, sunlight, water, land, vegetation, animal life and geological resources. People can also value natural resources for their own sake or for their aesthetic qualities. Humans must manage natural resources to sustain the benefits they offer. Canada is among the most resource-rich countries in the world. Its large and varied natural resources are essential to its economies and cultures. But there are ongoing debates about how to use, share and manage natural resources. Click here for definitions of key terms used in this article. This is the full-length entry about natural resources in Canada. For a plain-language summary, please see Natural Resources in Canada (Plain-Language Summary).

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  • Article

    Rhododendron

    Rhododendron [Gk, "red tree"] is a large genus (700 species) of the heath family (Ericaceae) found in the Northern Hemisphere; 4 species are native to Canada. The genus contains both rhododendrons, usually evergreen, and azaleas, which are deciduous.

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  • Article

    Rhubarb

    Rhubarb (genus Rheum) is a common name for about 50 species of cool-season herbaceous perennial plants belonging to the buckwheat family and originating in central Asia.

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  • Article

    River

    A river is a course of water, usually growing in volume between its source and its terminus in an ocean, a lake or another river.

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  • Article

    Rock slide

    A rock slide is a type of landslide occurring when a mass of rock moves quickly downslope.

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  • Article

    Rocky Mountain Trench

    The Rocky Mountain Trench is a long and deep valley extending approximately 1,500 km from the Bitterroot Valley in northwest Montana through British Columbia to the Liard Plain just south of the Yukon Territory. Its predominantly flat floor is 3–20 km wide and ranges in elevation between 600 m and 1,000 m above sea level. With walls made of sedimentary, volcanic and igneous rock, the Trench is sometimes referred to as the “Valley of a Thousand Peaks” because of the towering mountain ranges on either side: the Rocky Mountains to the east and the Columbia, Omineca and Cassiar mountains to the west. Humans have relied on the rich resources provided by this distinctive landscape from pre-colonial times to the present.

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  • Article

    Rodentia

    Rodentia, largest and most common order of mammals, including 29 families, 418 genera and 1793 species. In Canada, 68 of the 163 species of terrestrial mammals are rodents.

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  • Article

    Rose

    Rose is a common name for members of genus Rosa of the rose family (Rosaceae). This large family, comprising more than 100 genera and 2000-3000 species, includes plants as diverse as strawberries, almonds and pears.

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