Welcome! The Town of Terry is located at the junction of old Hwy 10 and Hwy 253, just off of I-94 in eastern Montana. It is a picturesque town bordered by the beauty of the badlands, rolling hills, and the Yellowstone River. Terry was incorporated as a town in 1910, and is the seat of Prairie County. With a rich history steeped in agriculture, Terry embodies small town charm and homespun hospitality.