Union Pacific Railroad passenger train at Kelso, Washington, undated. Union Pacific 950 leads Union Pacific train 457 at a station stop in Kelso. Jack Flagg photo, J.M. Fredrickson collection. Other Subject Classes: passenger train, diesel Locomotive.

Southern Pacific Railroad diesel locomotive number 9009 at Kelso, Washington, circa 1975. SP 9009, 9015 and 9249 leads a freight train through Kelso. Photo by Jack Flagg, J.M. Fredricson collection. Other Subject Classes: diesel locomotive, freight train.

Southern Pacific Railroad diesel locomotive number 9009 at Kelso, Washington, circa 1975. SP 9009, 9015 and 9249 leads a freight train through Kelso. Photo by Jack Flagg, J.M. Fredricson collection. Other Subject Classes: diesel locomotive, freight train.

Plat Map of Northern Pacific facilities at Kelso, Washington, undated, Sheet Number 1, Line Segment 52, showing the Tacoma-Vancouver line.

Plat Map of Northern Pacific facilities at Kelso, Washington, undated, Sheet Number 4, Line Segment 52, showing the Tacoma-Vancouver line.

Plat Map of Northern Pacific facilities at Kelso, Washington, undated, Sheet Number 2, Line Segment 52, showing the Tacoma-Vancouver line.

Plat Map of Northern Pacific facilities at Kelso, Washington, undated, Sheet Number 3, Line Segment 52, showing the Tacoma-Vancouver line.

Northern Pacific steam locomotive 1507, an American Locomotive Company - Brooks Class W, at Kelso, Washington switching cars in the Kelso yard. Other subject categories: Locomotive-Steam, Yard-Freight