Council Grove State Park is a Montana state park in Missoula County, Montana in the United States. The park is and sits at an elevation of. The site of the park hosted the July 16, 1855 signing of the Hellgate treaty between representatives of the United States government and members of the Bitterroot Salish, Pend d'Oreille, and the Kootenai to make the Flathead Indian Reservation. One natural attraction of the park is its old growth ponderosa pine trees.
