Burlington Northern Caboose 10076 at Denver, Colorado, September 20, 1976, Big Sky Blue paint scheme. Formerly Great Nothern X116. Other subject classes: Caboose

Burlington Northern Caboose 10076 at Denver, Colorado, June 20, 1981, Big Sky Blue paint scheme. Formerly Great Nothern X116. Other subject classes: Caboose

Burlington Northern Caboose 10174 at Denver, Colorado, September 2, 1973, Burlington Northern 10174, formerly Great Northern X94. Other subject classes: Caboose

Burlington Northern Caboose 10174 at Denver, Colorado, September 2, 1973, Burlington Northern 10174, formerly Great Northern X94. Other subject classes: Caboose

Burlington Northern Caboose X155 at Denver, Colorado, August 26, 1973, Big Sky Blue paint scheme (formerly Great Northern X155). Other subject classes: Caboose

Northern Pacific steel caboose 10141 in a train at Denver, Colorado, on May 17, 1970. The car is part of the 10100-10149 number series. Photo by GJ Werkema. Other subject classes: freight car, steel caboose