A portion of a mammoth skull and tusk have been uncovered in southeastern Idaho near American Falls Reservoir.
Experts estimate the mammoth lived 70,000 years ago and was about 16 years old when it died.
The bones have been taken to the Idaho Museum of Natural history at Idaho State University in Pocatello where they will eventually be put on display.
The discovery of the bones on Oct. 18 by a volunteer with the U.S. Bureau of Reclamation followed heavy rains in August that caused additional erosion in the area.
Museum collections manager Mary Thompson says rising water at the reservoir prevents any more excavating this year.
She says workers will return next year when water levels drop to search for more mammoth bones.