Fact sheet about tar sands, or oil sands, "a combination of clay, sand, water, and bitumen, a heavy black viscous oil. Tar sands can be mined and processed to extract the oil-rich bitumen, which is then refined into oil." Discusses tar sands locations, the industry ("only Canada has a large-scale commercial tar sands industry"), extraction and processing, and related topics. Accompanied by photos. From the Bureau of Land Management (BLM).