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Steen River crater
Steen River crater is located in Canada
Steen River crater
Location in Canada
Impact crater/structure
Confidence Confirmed
Diameter 25 km (16 mi)
Age 91 ± 7 Ma
Late Cretaceous
Exposed No
Drilled Yes
Coordinates 59°30′N 117°38′W / 59.500°N 117.633°W / 59.500; -117.633 (Steen River crater)
Country Canada
State Alberta
District Mackenzie County

Steen River is an impact structure in Alberta, Canada. It is 25 km (16 mi) in diameter and the age is estimated to be 91 ± 7 million years (Late Cretaceous). The crater is not exposed at the surface. The crater was partially eroded prior to burial, and lies under 200 m (660 ft) of sediments.

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