Freedom Of Information Act

Circular seal with the words U.S. Department of the Interior across the top and March 3, 1849. across the bottom.  A bull bison stands on a prairie in the center looking left with mountains and a rising sun in the background.
United States Department of the Interior seal.
Learn more about the Freedom of Information Act Program.

Last updated: January 30, 2023

Park footer

Contact Info

Mailing Address:

13000 Highway 244
Building 31, Suite 1

Keystone, SD 57751

Phone:

605 574-2523
Park information. Phones are answered from 8:00 a.m. to 4:30 p.m. Monday through Friday.

Contact Us