Open Government Portal

As we launch this enhanced integrated Open Government Portal search, you may notice that there has been a reduction in the number of open information records. Please note that you can still access the publications that no longer appear here by visiting: Government of Canada Publications and Library and Archives Canada. If you have any comments or questions contact us!

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51 records found
  • Water quality of surface waters

    The plate contains four maps showing the Hardness of Surface Water, Total Dissolved Solids of Surface Waters, Turbidity of Surface Waters and the Chemical Quality of Typical Surface Waters of Canada. These water quality maps were based on data collected from 1970 and 1971 at national river...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Current Water Levels, 2008

    The map shows 3172 hydrometric stations, 1491 active and 1681 inactive, located on rivers and lakes across the country. All the stations on the map are situated in a drainage area of 200 square kilometres or more. For 1200 stations shown on the map, surface water level measurements are recorded...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JP2
    • ZIP
    • other
  • The hydrologic cycle

    Hydrology is the science concerned with the occurrence and distribution of water on and under the earth. Meteorology is the science dealing with the atmosphere and the movement of water, both as vapour and as liquid, in the air. Both sciences are concerned with the hydrologic cycle - the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • 1Freeze-up and break-up of rivers and lakes

    The plate contains four maps showing the mean river freeze-over date, the mean lake freeze-over date, the mean river ice-free date and the mean lake ice free date. The four maps depict, in a general way, the average dates on which freshwater bodies in Canada become completely ice-covered in the...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Yukon Territory

    Contained within the Atlas of Canada's Reference Map Series, 1961 to 2010, is a large, bilingual map shows Yukon Territory with full colour hypsometrical tints including spot elevations. It also includes international and territorial boundaries, the road transportation network, and the location...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Discover Canada's Watersheds

    Contained within the Atlas of Canada Poster Map Series, is a map depicting the 5 main watersheds in Canada. Building Canadian Water Connections initiative and the Canadian Wildlife Federation have collaborated to produce this map that promotes the importance of watersheds through education....
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Lakes, Rivers and Glaciers

    Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the lakes, rivers and glaciers as well as the major drainage areas. Provincial and territorial boundaries are shown, but otherwise there are no other names or symbols shown on the Canadian land surface.
    Organization:
    Natural Resources Canada
    Resource Formats:
    • PDF
    • JPG
  • Drainage Basins

    Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows drainage basins as well as major lakes and diversions. The map displays the ocean drainage areas along with component river basins and diversion areas for the Arctic, Pacific, Hudson Bay and Atlantic drainage areas.
    Organization:
    Natural Resources Canada
    Resource Formats:
    • PDF
    • JPG
  • Canada - Status of Primary Vertical Geodetic Control December 31, 1986

    Contained within the Atlas of Canada's Various Map Series, 1965 to 2006, is a map showing a variety of indicators of vertical geodetic control: location of leveling routes and water transfer parts of these routes, and tidal stations. This appears to be the latest version of this map, which first...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
  • Profiles of Major Rivers

    Contained within the 3rd Edition (1957) of the Atlas of Canada is a map that shows the profiles of 17 major rivers together with the positions of important cultural and physical features connected with them. These include hydro-electric power developments (circa 1955) and lakes and a reference...
    Organization:
    Natural Resources Canada
    Resource Formats:
    • JPG
    • PDF
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