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Ice Age Discovery
A Mammoth Discovery
Snowmass Village has developed “mammoth fever” ever since the exciting discovery of juvenile Columbian mammoth bones made while bulldozer operator Jesse Steele was working on the expansion of Ziegler Reservoir in October, 2010.

Soon after, the excavation went into full swing when a team from The Denver Museum of Nature & Science arrived, and along with hundreds of local volunteers, discovered a treasure trove of Ice Age fossils.

Scientists are now using the findings as an opportunity to learn more about the Ice Age history of the Rocky Mountains.
ice age discovery 

Facts on the Find

  • The Ziegler site has yielded the largest collection of Mastodon bones from a single site anywhere, and is likely the best high elevation Ice Age site in the world. 
  • Initial radiocarbon dating indicates that the site is more than 45,000 years old. Geologists estimate it could be as old as 130,000 to 150,000 years. 
  • In total, 4,826 bones were pulled from the site in 2011 
  • Seven species of large mammals and 19 types of smaller animals were identified.

Learn More
At The Ice Age Discovery Center

Touch a mastodon tooth, wonder at a half-sized wooden Mammoth skeleton, see video from Denver Museum of Nature & Science, and learn the story of the Snowmass Ice Age discovery through creative displays, educational panels, and interactive programming. Visit the Ice Age Discovery Center located on the Snowmass Village Mall, open daily in the winter and summer from 10:00 a.m. – 5:00 p.m. Call 1-800-SNOWMASS or visit the Ice Age Discovery website for more information.

Through Snowmass Discovery
After the find, a non-profit group was formed to determine a plan to continue the science and programming associated with this historic event. Learn more