Burlington Northern diesel locomotive 6442, formerly Great Northern 412, at Auburn, Washington, on August 10, 1970. Number 6442 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 32992. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6441, formerly Great Northern 411, at Auburn, Washington, on October 31, 1970. Number 6441 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 32991. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6440, formerly Great Northern 410, at Auburn, Washington, on June 02, 1971. Number 6440 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 32990. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 6439, formerly Great Northern 409, at Tacoma, Washington, on February 10, 1972. Number 6439 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 32989. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 6437, formerly Great Northern 407, at Easton, Washington, on July 21, 1970. Number 6437 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 31605. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6437, formerly Great Northern 407, at Easton, Washington, on July 21, 1970. Number 6437 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 31605. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6437 at Easton, Washington, on July 21, 1970. Number 6437, an SD45, is shown with U35C number 5611. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6436, formerly Great Northern 406, at Seattle, Washington, on September 16, 1973. Number 6436 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 31604. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6435, formerly Great Northern 405, at Auburn, Washington in July 1975. Number 6435 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 31603. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 6434, formerly Great Northern 404, at Minneapolis, Minnesota, on June 21, 1973. Number 6434 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 31602. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse.