Great Northern Boxcar 37750 at Longmont, Colorado, August 28, 1980. Other subject classes: Box car

Great Northern Boxcar 39895 at Longmont, Colorado, August 28, 1980. Other subject classes: Box car

Great Northern Covered Hopper Car 170092 at Longmont, Colorado, August 28, 1980, Association of American Railroads Class LO. Other subject classes: Covered hopper car

Great Northern Covered Hopper Car 170131 at Longmont, Colorado, August 28, 1980, Association of American Railroads Class LO. Other subject classes: Covered hopper car

Great Northern Covered Hopper Car 172535 at Longmont, Colorado, August 28, 1980, Association of American Railroads Class LO. Other subject classes: Covered hopper car

Great Northern Flatcar 160026 at Longmont, Colorado, March 13, 1985, Association of American Railroads Class FB, bulkhead. Other subject classes: Flat car

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