Athabasca Oil Sands Near Athabasca River, Canada56.7N 111.3W
The Athabasca River runs vertically down the right side of this orthorectified image of eastern Alberta, Canada. Along its course, it passes by the Athabasca Oil Sands, near Fort McMurray.
Oil sands are large deposits of bitumen, or extremely heavy and semi-solid crude oil, mixed with silica sand, clay minerals, and water. The Athabasca deposit is the largest reservoir of crude bitumen in the world.