Beaverhead crater

Beaverhead crater

Beaverhead crater Location of Beaverhead Crater in Idaho
Impact crater/structure
Confidence	confirmed
Diameter	60 kilometres (37 mi)
Age	600 million years
Exposed	Yes
Drilled	No
Location
Coordinates
Country	United States
State	Idaho
Beaverhead crater Location of Beaverhead Crater in Idaho

Beaverhead is an impact structure in central Idaho and western Montana in the United States. Estimated at 60 kilometers (37 mi) in diameter, it is one of the largest impact craters on Earth. Its age is estimated to be about 600 million years (late Neoproterozoic).

The structure is named after the area in southwest Montana where evidence of an impact was first discovered in 1990. Other than the original shatter cones found on the perimeter, there is little visible evidence of the structure.

References

• Carr, J and Link, PK, 1999, Neoproterozoic conglomerate and breccia in the formation of Leaton Gulch, Grouse Peak, northern Lost River Range, Idaho: Relation to Beaverhead Impact Structure, in Hughes, S.S., and Thackray, G.D., eds., Guidebook to the Geology of Eastern Idaho: Pocatello, Idaho Museum of natural History, p. 21-29.
• Aerial Exploration of the Beaverhead crater

See also

• Chesapeake Bay impact crater