On July 28, 1862, John White and other members of the “Pikes Peakers” discovered gold in the creek waters where Bannack stands today. It was the beginning for both Bannack and the State of Montana, considered one of the last frontiers. The creek was originally named Willard Creek by the Lewis and Clark Expedition when they came through in 1805. But due to the large grasshopper population in 1862, it was renamed Grasshopper Creek.
it's now a well preserved ghost town.