MONTANA

Cascade County

• Great Falls. Octagon or hexagon building. Built in or before 1904. Not clear whether this is a house or a barn. Located on Twelfth Street near the intersection of Fourth Avenue, south. A segment of a 1891 map of Great Falls shows the building at the center of the image.
  Source: R. Kline
  Entered: August, 2001.

Lewis and Clark County.

• East Helena. Octagon house. Built in 1888. Nothing else known.
  Source: R. Kline
  Entered: September, 2002.

Ravalli County.

• Hamilton. Octagon house. Built in 1909. Nothing else known.
  Source: R. Kline
  Entered: September, 2002.