Big Arm School

The Big Arm School is a site on the National Register of Historic Places located northwest of Polson, Montana. It was added to the Register on August 16, 2007.

It is a one-story, wood-frame, 36x24 ft school building which also served as a dance hall and a polling station and in other functions. It was built in the mid-1910s and served both Indian and non-Indian students for fifty years. Its first teacher was a Mr. Howe; another named M.P. Elder taught 33 students from 15 families in 1915–16. During 1944-45 there were just five students, taught by Marie Twitchel, including her brother.