Bearmouth was a trading post for the placer mining camps of Beartown, Garnet and Coloma, located in the hills north of Bearmouth in Granite County, Montana, United States.

Avon is a census-designated place (CDP) in Powell County, Montana, United States. The population was 124 at the 2000 census.

Butler - a post office from1891-1901. Thomas Coulter was the postmaster. After this, the mail address was Austin.

Austin - was a flag station on the Northern Pacific north of Helena near the once populous and prosperous placer camp known as Greenhorn. According to postal records, Peter Tostevin was appointed postmaster when the post office opened in 1901 in a place formerly known as Butler. The office closed in 1967.

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