Burlington Northern diesel locomotive 6604 at Cocolalla, Idaho, on August 21, 1970. Number 6604, an F45, is leading westbound train number 190. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive.

Burlington Northern diesel locomotive 3001 at Cocolalla, Idaho, on August 21, 1970. Number 3001, an ex-Great Northern GP30, is leading train number 179. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive.

Burlington Northern diesel locomotive 3001 at Cocolalla, Idaho, on August 21, 1970. Number 3001, an ex-Great Northern GP30, is leading train number 179. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive.

Burlington Northern diesel locomotive 3001 at Cocolalla, Idaho, on August 21, 1970. Number 3001, an ex-Great Northern GP30, is leading train number 179. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive.

Burlington Northern diesel locomotive 3001 at Cocolalla, Idaho, on August 21, 1970. Number 3001, an ex-Great Northern GP30, is leading train number 179. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive.