Great Northern Gondola 78563 at Longmont, Colorado, December 31, 1989, Association of American Railroads Class GB. Other subject classes: Gondola

Great Northern Hopper Car 70143 at Longmont, Colorado, March 22, 1981, Association of American Railroads Class HT. Other subject classes: Hopper car

Great Northern Hopper Car 70238 at Longmont, Colorado, January 1990, Association of American Railroads Class HT. Other subject classes: Hopper car

Great Northern Hopper Car 70280 at Longmont, Colorado, January 13, 1990, Association of American Railroads Class HT. Other subject classes: Hopper car

Great Northern Hopper Car 70336 at Longmont, Colorado, March 22, 1981, Association of American Railroads Class HT. Other subject classes: Hopper car

Great Northern Hopper Car 70350 at Longmont, Colorado, March 22, 1981, Association of American Railroads Class HT. Other subject classes: Hopper car

Great Northern Hopper Car 70350 at Longmont, Colorado, March 22, 1981, Association of American Railroads Class HT. Other subject classes: Hopper car

Great Northern Hopper Car 70374 at Longmont, Colorado, January 13, 1990, Association of American Railroads Class HT. Other subject classes: Hopper car

Great Northern Hopper Car 73105 at Longmont, Colorado, March 1974, Association of American Railroads Class HM. Other subject classes: Hopper car

Northern Pacific 40.75-foot, box car number 17410 with one sliding door is in a yard at Longmont, Colorado, on June 7, 1978. The car is part of the 17000-17499 number series. Photo by GJ Werkema. Other subject classes: freight car, steel box car