Natural Resources Canada

Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the area of wetlands as a percentage of grid-units, 10 000 square kilometres in area. The term, wetlands, as used on this map, refers to areas represented on the 1:250 000 scale maps of the National Topographical...

Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the great groups and subgroups of soil types as well as land types. This map is supplemented by diagrams and an explanation for soil profiles. The map uses a simplified color system based on The System of Soil...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps. One shows soil temperature classes and the second shows soil moisture regimes and subclasses. These maps are supplemented by a text giving detailed definitions for both soil temperature classes and soil moisture...

Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows vegetation regions for the entire area of Canada. There is a colour/pattern fill which references the vegetation regions to the corresponding physiognomy and characteristic dominant plant species description lists...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps. The first map shows the location of weather stations. Stations are denoted as having 25 to 30 year records within the period 1931 to 1960. As well, whether the station collected temperature data, precipitation...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of three maps relating the effects and dependency of vegetation on environmental variables. One map shows the average annual potential evapotranspiration in inches from ground and plant surfaces for areas where there is a...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of three maps showing the length of the growing season, the start of the growing season and the end of the growing season for the fertile regions. A fourth map shows the average length in days of the frost-free period for the...

Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of five maps. Two maps show, for fertile regions, the average date of the last frost in spring and the average date of the first frost in autumn. The three remaining maps show the median depth of snow cover at a scale...

Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of six maps. Each map shows the median depth of snow for December 31st, January 31st, February 28th, March 31st, April 30th and May 31st respectively.

Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows the average annual number of days with precipitation. The main map is accompanied by a supplementary map at a scale of 1:40 000 000, outlining precipitation regions. As well, climatic graphs for selected stations...

Contained within the 4th Edition (1974) of the Atlas of Canada is a collection of six maps. Each map shows the average monthly precipitation for April, May, June, July, August and September.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps. One map shows the average precipitation for April to September. The second shows the average precipitation for October to March.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of six maps showing the average daily minimum temperature and average daily maximum temperature for December, January and February.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of six maps showing the average daily minimum temperature and average daily maximum temperature for March, April and May.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of six maps showing the average daily minimum temperature and average daily maximum temperature for June, July and August.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of six maps showing the average daily minimum temperature and average daily maximum temperature for September, October and November.

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps. The first map shows exploration routes of British, French and Spanish explorers of eastern and central North America between 1524 and 1912. The second map shows exploration routes of British, Danish and French...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of three maps. The first map shows sea routes traveled by British, French, Russian and Spanish explorers between 1741 and 1794. The second map shows routes taken by explorers in search of the Northwest Passage during the...

Contained within the 4th Edition (1974) of the Atlas of Canada is a set of two maps. The first map shows exploration routes of the Arctic between 1587 and 1941 for American, British, Canadian, Danish, German and Norwegian explorers. A 1:7 500 000 scale supplementary map detailing the exploration...

Contained within the 4th Edition (1974) of the Atlas of Canada is a map that shows locations of fur trading posts for the period 1600 to 1870. The first known owner of the post (France, England, Canadian independent, XY Company, North West Company or Hudson's Bay Company) and the known length of...