Plat Map of Northern Pacific facilities at Seattle, Washington, July 1, 1949, Sheet Number 1, Line Segment 403, showing the Seattle-Sumas line, Interbay, 12th Avenue West-15th Avenue West.

Plat Map of Northern Pacific facilities at Seattle, Washington, January 1, 1949, Sheet Number 4, Line Segment 51, showing the Seattle-Tacoma line, Argo Yard.

Plat Map of Northern Pacific facilities at Seattle, Washington, April 1, 1949, Sheet Number 2, showing the Harbor Island, 16th Avenue Southwest, dock and industry spurs.

Plat Map of Northern Pacific facilities at Seattle, Washington, November 1, 1949, Sheet Number 1, Line Segment 403, showing the Seattle-Sumas line, Elliott Avenue West, Smith Cove.

Plat Map of Northern Pacific facilities at Seattle, Washington, October 13, 1948, Sheet Number 1, Line Segment 403, showing the Seattle-Sumas line, Interbay.

Plat Map of Northern Pacific facilities at Seattle, Washington, October 13, 1948, Sheet Number 2, Line Segment 403, showing the Seattle-Sumas line, Interbay, Naval Supply Depot.

Plat Map of Northern Pacific facilities at Seattle, Washington, October 13, 1948, Sheet Number 3, Line Segment 403, showing the Seattle-Sumas line, Smith Cove, navy piers.

Plat Map of Northern Pacific facilities at Seattle, Washington, June 1, 1947, Sheet Number 2, showing the West Marginal Way, Iowa Avenue Southwest, industry spurs.

Plat Map of Northern Pacific facilities at Seattle, Washington, July 1, 1947, Sheet Number 3, Line Segment 51, showing the Seattle-Tacoma line, Georgetown.

Plat Map of Northern Pacific facilities at Seattle, Washington, June 1, 1947, Sheet Number 1, showing the Spokane Street, Harbor Island, Duwamish drawbridge, West Marginal Way.