Mines Museum of Earth Science

Visit this free museum & take in over 15,000 square feet of rocks, minerals, fossils and other fascinating Earth Science-related objects. Pass through our indoor cave and discover minerals that glow. Gaze at the sparkling Miss Colorado Crown containing over 600 gemstones and 21 diamonds. Transport yourself to Golden’s geologic past through our windows. Earn a free rock or mineral by participating in a family-friendly scavenger hunt and watch for changing themes!