The Montana Dinosaur Center
This is one of the few organizations that encourages visitors to have a full hands-on experience. To provide this, TMDC's programs include public digs, volunteer opportunities, and seminars. As a dinosaur research facility, TMDC's collection includes a large assortment of dinosaur, invertebrate, and plant fossils, as well as cultural artifacts. The center is only open from May to September; any other time of the year will require an appointment.