Makoshika State Park ("ma-KO-sh(ih)kuh" from the Lakota Mako sica, meaning 'bad land' or 'land that is bad')[2] is a nature preserve and public recreation area located on the southeast side of Glendive in Dawson County, Montana.

The state park encompasses badlands containing dinosaur fossils and rock from the Hell Creek Formation.

Chamber secretary K. E. Burleigh wrote to federal officials, requesting that they "inspect our proposed bad-lands park, we would be very glad to show it to them and we would appreciate any efforts on your part to have a park established near Glendive, as you know we are very short on scenery and places of interest, and I believe it would be one way to stop tourists in Glendive for a day or two."

In 1997, a fossil thescelosaurus considered to be the largest and most complete skeleton of its kind was found by an expedition led by Jack Horner and Bob Harmon.

[8] The park features a visitors center with geology and fossil displays, scenic drives, nature trails, campground, archery area, amphitheater, and picnicking facilities.