Union Pacific Railroad accident at Pioneer Pit between Tacoma and Steilacoom, Washington, on April 19, 1972. The series of photos show scenes of the gravel pit facility and rail cars involved. Photo by J.M. Fredrickson. Other Subject Classes: accident.

Union Pacific Railroad accident at Pioneer Pit between Tacoma and Steilacoom, Washington, on April 19, 1972. The series of photos show scenes of the gravel pit facility and rail cars involved. Photo by J.M. Fredrickson. Other Subject Classes: accident.

Union Pacific Railroad accident at Pioneer Pit between Tacoma and Steilacoom, Washington, on April 19, 1972. The series of photos show scenes of the gravel pit facility and rail cars involved. Photo by J.M. Fredrickson. Other Subject Classes: accident.

Union Pacific Railroad accident at Pioneer Pit between Tacoma and Steilacoom, Washington, on April 19, 1972. The series of photos show scenes of the gravel pit facility and rail cars involved. Photo by J.M. Fredrickson. Other Subject Classes: accident.

Union Pacific Railroad accident at Pioneer Pit between Tacoma and Steilacoom, Washington, on April 19, 1972. The series of photos show scenes of the gravel pit facility and rail cars involved. Photo by J.M. Fredrickson. Other Subject Classes: accident.

Union Pacific Railroad accident at Pioneer Pit between Tacoma and Steilacoom, Washington, on April 19, 1972. The series of photos show scenes of the gravel pit facility and rail cars involved. Photo by J.M. Fredrickson. Other Subject Classes: accident.

Union Pacific Railroad accident at Pioneer Pit, Washington, on April 19, 1972. Documentation of a Union Pacific Railroad derailment. Pictures show scenes of pit facility and rail cars involved. Southern Pacific number 8883 is passing the scene with a freight train. Photo by J.M. Fredrickson. Other Subject Classes: accident, diesel locomotive.

Union Pacific Railroad accident at Pioneer Pit between Tacoma and Steilacoom, Washington, on April 19, 1972. The series of photos show scenes of the gravel pit facility and rail cars involved. Photo by J.M. Fredrickson. Other Subject Classes: accident.

Union Pacific Railroad accident at Pioneer Pit between Tacoma and Steilacoom, Washington, on April 19, 1972. The series of photos show scenes of the gravel pit facility and rail cars involved. Photo by J.M. Fredrickson. Other Subject Classes: accident.

Union Pacific Railroad accident at Pioneer Pit between Tacoma and Steilacoom, Washington, on April 19, 1972. The series of photos show scenes of the gravel pit facility and rail cars involved. Photo by J.M. Fredrickson. Other Subject Classes: accident.