Burned diesel locomotive engine in Burlington Northern, former SP&S, roundhouse at Vancouver, Washington, December 1970. Photo by Robert Johnston.

Former SP&S diesel locomotive Number 93, an American Locomotive Company (ALCO) RS-3, burned in Burlington Northern, former SP&S, roundhouse at Vancouver, Washington, December 1970. Photo by Robert Johnston.

Damaged SP&S diesel locomotive Number 80, an American Locomotive Company (ALCO) RS-3, inside SP&S Hoyt Street Roundhouse in Portland, Oregon, undated.

Damaged SP&S diesel locomotive Number 80, an American Locomotive Company (ALCO) RS-3, inside SP&S Hoyt Street Roundhouse in Portland, Oregon, undated.

Damaged Great Northern diesel locomotive Number 5, an ALCO S-2, inside the SP&S Hoyt Street Roundhouse, undated.

Damaged Great Northern diesel locomotive Number 5, an ALCO S-2, inside the SP&S Hoyt Street Roundhouse, undated.

Damaged Great Northern diesel locomotive Number 5, an ALCO S-2, inside the SP&S Hoyt Street Roundhouse, undated.

Damaged Great Northern diesel locomotive Number 5, an ALCO S-2, inside the SP&S Hoyt Street Roundhouse, undated.

Damaged Great Northern diesel locomotive Number 5, an ALCO S-2, inside the SP&S Hoyt Street Roundhouse, undated.

Damaged Great Northern diesel locomotive Number 5, an ALCO S-2, inside the SP&S Hoyt Street Roundhouse, undated.