Brush Lake is a deep, clear lake with sandy beaches located in the prairie of northeastern Montana. This mile long lake offers public access for swimming and is ideal for wildlife viewing, motorized boating and water skiing. This area is the historical territory of several tribes, including the Assiniboine (Nakoda/Nakona) and Sioux (Dakota) bands, whose descendents now live at the Fort Peck Reservation in Montana, as well as at Fort Belknap and reservations in North and South Dakota. • • • • • #mtstateparks #mtexploremore #montanamoment #missouririvercountry #brushlakestatepark