Boulder, Montana Great Northern depot with semaphore train order, track side view, freight room end, wooden construction, Walter Ainsworth photo, undated.

Boulder, Montana Great Northern depot with semaphore train order, track side view, freight room end, wooden construction with diesel locomotive Number 352, other F units and passenger train, Walter Ainsworth photo, undated.

Great Northern depot at Boulder, Montana, undated. Photograph by Stan Townsend, from the Norm Keyes Collection.

Great Northern depot at Boulder, Montana, undated. Photograph by Robert Johnston, from the Norm Keyes Collection.

Great Northern depot at Boulder, Montana, undated. Photograph by Stan Townsend, from the Norm Keyes Collection.