Explore the Mammoth Site

The Mammoth Site is a 501(c)(3) nonprofit organization dedicated to the mission of preservation, research, and interpretation of the late Ice Age record found at our site in Hot Springs, South Dakota. We are the world’s largest mammoth research facility and one of the top fossil interpretive sites in North America. Over 60 mammoths (58 Columbian, 3 woolly) have been unearthed, along with at least 87 other Late Ice Age animals.

The Mammoth Site does not receive any ongoing federal, state, or local funding. Admission, donations, and gift shop sales help us continue to tell the story of the late Ice Age.


Open Daily

May 24 – August 19
8:00am – 6:00pm

August 20 – October 31
9:00am – 5:00pm

November 1 – February 28
9:00am – 3:30pm

March 1 – May 23
9:00am – 5:00pm

Our Location

Mammoth Site


1800 US 18 Bypass
P.O. Box 692
Hot Springs, SD 57747


General Admission

Children 3 & Under – Free
Ages 4-12 – $11.00
Active & Retired Military – $11.00
Ages 13-59 – $14.00
Ages 60 & Over – $12.00

Discover the Mammoth Site

Discover The Mammoth Site in Hot Springs, South Dakota. You can tour this indoor active dig site and view Ice Age fossils. The Mammoth Site offers self-guided tours, enhanced educational experience  and Summer Educational Programs. The Mammoth Site is open year round.

The History

In June 1974, heavy equipment operator George Hanson was leveling ground for a Hot Springs housing development planned by land owner Phil Anderson. Hanson was grading a small hill when his blade struck something that shone white in the sunlight. Hanson got out for a closer look. What he saw was a tusk, about seven feet long, sliced in half length wise, along with other bones.

Steam Education

The Mammoth Site has been taking strides to become a world-renown education and research institution and offers a wide variety of projects and programs.

The Mammoth Site is the perfect place for field trips and offers a variety of classes


The Mammoth Site is the only late Ice Age facility of its kind in North America and has become a valuable educational resource for students of all ages; not only in the United States but the entire world. Paleontology research done at The Mammoth Site offers a unique multidisciplinary educational opportunity to our visiting patrons and students.

Become a Member

All memberships receive:

  • Free admission during membership year
  • Invitations to special events & lecture series
  • Yearly membership pin
  • Information newsletters delivered via email

Benefits for Business Memberships:
Partner:  Website logo sponsorship

Extra Benefits and Discounts
Become a Donor, Contributing, Business, Supporting or Sustaining member and receive: 

  • 20% discount in The Mammoth Site Gift Shop.

Donor: 2 complimentary passes
Contributing: 4 complimentary passes.
Supporting: 6 complimentary passes