Grand River Museum - Dedicated to preserving the paleontological and ethnographical resources of the Grand River Region of South Dakota. www.grandrivermuseum.org
Mammoth Site Museum - Ice Age mammal fossils from a sinkhole in Hot Springs, South Dakota. www.mammothsite.com
Plesiosaur Paleontology - Work being done on this site in Grant County, South Dakota from a paleontological standpoint. www.geocities.com/CapeCanaveral/Hall/1189
