The small town of Gardiner, MT is located 5 miles north of Mammoth Hot Springs. I drive here pretty often to buy groceries at the Food Farm, the only grocery store in town. Gardiner has zero traffic lights, only one stop sign, and only one chain restaurant - a Subway that is located in one of the 2 gas stations in town. There is a post office, 4 churches, and several gift shops and rafting companies.
However, the drive can be pretty exciting. You never know what you'll see.
On one trip, there were big horn sheep on the cliffs over the Gardner River.