Contained within the 2nd Edition (1915) of the Atlas of Canada is a map that shows the mineralogy and locations of mineral deposits for Western Canada. A line drawn across the map divides the large northern portion that that has had little prospecting, except along the valleys of the principal rivers, and the Southern, partly prospected areas. Many mining districts are named on the map, and different symbols indicate which type of mineral are located in a specific location. The map includes major cities, rivers, major bodies of water, and some railway networks crossing into the U.S.