Discover Alberta through Toporama
The federal Department of Natural Resources offers free topographical maps for Canada at Toporama. I will be adding this link to hikealberta.com The maps are of high quality and can be printed. They are also can be searched by latitude and longitude.
Here is a view of a topographical map of the Bow Valley Parkway at the 1:40,000 scale. The Edith Pass and Brewster Creek Trails are visible.
At maximum resolution 1:20,000 scale here is the view of the same area.
Unfortunately, trails for less popular areas like those in the Elbow Valley do not appear on the maps. Another interesting feature is that satellite imagery is available for the area you are interested in as well as information such as water saturated soil, vegetation and designated areas for everything from campgrounds to golf courses. Have a look at Toporama if you are looking for trail or other information about an area or looking to plan an extreme backcountry adventure.