Northern Pacific 40.5-foot, box car number 3020 with plug and sliding doors is in a train at Idaho Falls, Idaho, on August 19, 1975. The car is part of the 3000-3399 number series. Photo by GJ Werkema. Other subject classes: freight car, steel box car

Northern Pacific 50-foot, single plug door, refrigerator car 97815 is in a train at Idaho Falls, Idaho, on August 19, 1975. The car is part of the 97800-97899 number series. Photo by GJ Werkema. Other subject classes: freight car, refrigerator car

Norfolk & Western Railway diesel locomotive 2965 during a major overhaul at Morrison?Knudsen in Boise, Idaho on October 8, 1986. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Nez Perce & Idaho Railroad steam locomotive 4 at Nezperce, Idaho, circa 1950. Nez Perce & Idaho 1, formerly Northern Pacific number 684, class C-1, 4-4-0, built by Rome, 1883. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster shot

Nez Perce & Idaho Railroad steam locomotive 4 at Nezperce, Idaho, circa 1950. Nez Perce & Idaho 1, formerly Northern Pacific number 684, class C-1, 4-4-0, built by Rome, 1883. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster shot

Nez Perce & Idaho Railroad steam locomotive 4 at Nezperce, Idaho, circa 1948. Nez Perce& Idaho 4, formerly Northern Pacific number 684, class C-1, 4-4-0, built by Rome, 1883. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster shot

Nez Perce & Idaho Railroad steam locomotive 1 at Nezperce, Idaho, circa 1950. Nez Perce & Idaho 1, formerly Northern Pacific 684 class C-1, 4-4-0, built by Rome, 1883. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster shot

Nez Perce & Idaho Railroad steam locomotive 1 at Nezperce, Idaho, circa 1950. Nez Perce & Idaho 1, formerly Northern Pacific number 684, class C-1, 4-4-0, built by Rome, 1883. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster shot

National Railway Supply (NRS) Corporation passenger car 541 on a siding at Boise, Idaho on October 8, 1986. Photo by J.M. Fredrickson. Other Subject Classes: passenger car

National Railway Supply (NRS) Corporation passenger car 541 is switched by Union Pacific locomotive 2015 at Boise, Idaho on October 08, 1986. Photo by J.M. Fredrickson. Other Subject Classes: passenger car, diesel locomotive