Garnet is located 11 miles (18 km) north of the junction of Interstate 90, U.S. Route 12 and Bear Gulch Rd.

When a stamp mill was built at First Chance Gulch in 1895, a small town grew up nearby.

Their rates typically ranged from $1–3, and the poor miners who could not afford that price could sleep in the attic without any windows for a quarter.

Garnet's oldest living member, Mary Jane Adams Morin, came to visit every year.

The buildings are mostly at the north end of First Chance Gulch, but the listing includes mining structures in a wider area extending in all directions from the town site.

[3] In First Chance Gulch in western Montana, the town is located 11 miles up the Garnet Range Road, in mountains and forest.