Chehalis Western Alco C-415 center cab diesel locomotive number 684 leads a string of Weyerhaeuser Company empty log flatcars at Centralia, Washington, circa 1975. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, log car.

The Northern Pacific Depot at Centralia, Washington, circa 1912. The third depot is pictured, from the Walter W. Ainsworth Collection.

The Northern Pacific Depot at Centralia, Washington, circa 1912. The third depot is pictured, from the John A. Phillips III Collection.

The Northern Pacific Depot at Centralia, Washington, 1929. The third depot is pictured, photograph by James Fischer.

The Northern Pacific Depot at Castle Rock, Washington, circa 1912. The second depot is pictured, from the Kurt Armbruster Collection.

Plat Map of Northern Pacific facilities at Centralia, Washington, undated, Sheet Number 1, Line Segment 611, showing the Centralia yard.

Plat Map of Northern Pacific facilities at Centralia, Washington, undated, Sheet Number 3, Line Segment 611, 421, showing the Centralia yard, Centralia-Gate line.

Plat Map of Northern Pacific facilities at Centralia, Washington, undated, Sheet Number 6, Line Segment 611, showing the Centralia yard, south end.

Plat Map of Northern Pacific facilities at Centralia, Washington, undated, Sheet Number 2, Line Segment 611, showing the Centralia yard, turntable.

Plat Map of Northern Pacific facilities at Centralia, Washington, undated, Sheet Number 4, Line Segment 611, showing the Centralia yard, depot.