The Northern Pacific Depot at Butte, Montana, undated. Located at Milepost 71.

The Northern Pacific Depot at Camp Lewis, Washington, 1929, from the Walter W. Ainsworth Collection, photograph by James Fischer.

The Northern Pacific Depot at Camp Lewis, Washington, 1929, from the Walter W. Ainsworth Collection, photograph by James Fischer.

The Carrington, North Dakota Northern Pacific depot looking notheast in 1970. Located at Milepost 43.7, from the Charles W Bohi Collection, photograph by Charles W. Bohi.

The Carrington, North Dakota depot circa 1900. Located at Milepost 43.7, from the Ron Fredrickson Collection.

The Northern Pacific Depot at Carrolls, Washington, 1929, from the Walter W. Ainsworth Collection, photograph by James Fischer.

Casselton, North Dakota interlocking tower on the Great Northern,ÿguarding the Soo Line crossing, looking south in 1968. Located at Milepost 25.1, from the Charles W Bohi Collection, photograph by Charles W. Bohi.

The Northern Pacific Depot at Casselton, Minnesota, circa 1890, from the James M. Fredrickson Collection.

The Casselton, North Dakota Northern Pacific depot looking nothwest in 1968. Located at Milepost 25.1, from the Charles W Bohi Collection, photograph by Charles W. Bohi.

The Casselton, North Dakota depot. Located at Milepost 43.7, from the Ron Fredrickson Collection, photograph by H.R. Strehlow.