This National Park Service-sponsored recreational activity leads you to some of the park's significant geological resources. Using your GPS unit and a set of clues obtained from this website and hidden along the journey, you can guide yourself to a series of sites in the park.
Please note that geocaching with traditional physical caches is not permitted in the park.
How it Works
Are you interested in learning more about EarthCache activities nationwide? Then visit the Geologic Society of America's EarthCache website.