The Northern Pacific Depot at Arlee, Montana, June 16, 1961, from the Ronald V. Nixon Collection, Museum of the Rockies, Bozeman, Montana, photograph by Ronald V. Nixon.

The Northern Pacific Depot at Arlington, Washington, 2007. Located at Milepost 61.5.

The Northern Pacific Depot at Arlington, Washington, 2007. Located at Milepost 61.5.

The Northern Pacific Depot at Arlington, Washington, 2007. Located at Milepost 61.5.

The Northern Pacific Depot at Arlington, Washington, circa 1970, from the Walter W. Ainsworth Collection, photograph by Robert W. Johnston.

Postcard photo looking east at Armstead, Montana.ÿ The enginehouse and water tank are in the background.ÿ See "Get Off and Push" -- The Story of the Gilmore & Pittsburgh Railroad, by Thrnton Waite.ÿ The G&P was a subsidary of the Northern Pacific, abandoned in 1939.

The Northern Pacific Depot at Arrow, Idaho, circa 1950, from the James M. Fredrickson Collection, photograph by James M. Fredrickson.

Northern Pacific-Chicago Northwestern depot at Ashland, Wisconsin, from the collection of Craig Bluschke, photograph by Craig Bluschke.

Northern Pacific-Chicago Northwestern depot at Ashland, Wisconsin.

Northern Pacific-Soo depot at Ashland, Wisconsin. The second depot is pictured.