"Earth observations of Lake Manicouagan,Quebec taken during STS-99"

STS099-749-063 (11-22 February 2000) ---One of the astronauts aboard the Space Shuttle Endeavour for the STS-99 mission recorded this 70mm image of Manicouagan, one of the largest and most famous craters in Canada. Lake Manicouagan and Lake Mushalagan, frozen in this image, surround the central uplift of the crater. The original crater diameter was 100 kilometers and the age has been dated at 214 million years. Shattercones, striated features found in rocks deformed by the passage of shock waves, and shattered and brecciated rocks found in the central uplift confirm the crater's impact origin, according the NASA scientists studying the STS-99 photo collection.