Museum of Geology  
501 East Saint Joseph Street
Rapid City, SD 57701
605-394-2467
800-544-8162

This museum explores the diverse and rich geology of the area through exhibitions that include minerals, rocks, gems, and fossils that include dinosaurs such as the Triceratops, Tyrannosaurus and Edmontosaurus; among the many other features is a Paleo-zoo that features exhibits of now extinct natives of the area, including saber-toothed cats, three-toed horses, turtles, rhinoceroses, giant pigs, camels, alligators, bird eggs, and more; there is also an extensive collection and exhibit of a great variety of minerals.