Rimini, (/ˈrɪmənaɪ/) is a ghost town in Lewis and Clark County, Montana, United States.

Other names for the district were Lewis and Clark, Tenmile, Vaughn, Colorado, and Bear Gulch.

The town, settled in the late 1860s by Irish miners, was at first called Young Ireland.

[9] The Montana Department of Environmental Quality describes the Rimini Mining District as follows: The Rimini district is about 13 miles west of Helena on the east side of the Continental Divide at the terminal point of a branch of the Northern Pacific Railroad.

During the 1880s a number of mines were developed with the most productive ones being the East Pacific, Lady Washington, John McGraw, Eureka and Porphery Dike.

It consists of numerous abandoned and inactive hard-rock mine sites that produced gold, lead, zinc and copper.

EPA identified 150 individual mine sites within the watershed boundary, of which 70 have been prioritized for cleanup.