Ackley State Park is 160 acres of campground and shoreline surrounding Ackley Lake, near Lewistown, in dead-center Montana. Ackley Lake, name for a local pioneer, is stocked with rainbow trout, and 10-15-inch fish are common.
Fifteen campsites (primitive, tent, and RV), two boat launches, vault toilets, fire rings, grills and picnic tables are available at this pack-in/pack-out park. There are no fees for camping, and no potable water is available on-site. Maximum trailer length is 24 feet.