Industrial landscape: Canada's Tar Sands: _LENZ-TarOilSands-58

Tailings Ponds. These vast toxic lakes are completely unlined and nearly a dozen of them lie on either side of the Athabasca River. Individual ponds can range in size up to 8,850 acres.

Tailings Ponds. These vast toxic lakes are completely unlined and nearly a dozen of them lie on either side of the Athabasca River. Individual ponds can range in size up to 8,850 acres.