Due to a lapse in federal funding, this USDA website will not be actively updated. Once funding has been reestablished, online operations will continue. On-going operational updates will be posted here (https://www.fs.fed.us/shutdown) as we are able to provide them.


Rocks & Minerals

Choose from the following to find a site:


South Dakota is acknowledged to be a virtual paradise for those who are interested in rocks, minerals, gemstones, and fossils. It is also one of the major areas for studying field geology.