Northern Pacific Engineering Drawing: Repairs, Sand Tower, Delta, Washington, Line Segment 408. Sheet 313 - 5944 - 2, undated.

Northern Pacific Engineering Drawing: Masonry Details, Sand Tower, Delta, Washington, Line Segment 408. Sheet 313 - 5944 - 5, undated.

Northern Pacific Engineering Drawing: Location Sketch Piping Plan, Sand Tower, Delta, Washington, Line Segment 408. Sheet 313 - 5944 - 3, undated.

Northern Pacific Engineering Drawing: General Plan, Sand Tower, Delta, Washington, Line Segment 408. Sheet 313 - 5944 - 4, undated.

Northern Pacific Engineering Drawing: Foundation Details, Sand Tower, Delta, Washington, Line Segment 408. Sheet 313 - 5944 - 1, undated.

Great Northern yard office at Delta, Washington, undated. Yard office, photograph by Stan Townsend, from the Norm Keyes Collection.

Great Northern yard office at Delta, Washington, undated. Photograph by Cordell Newby.

Great Northern yard office at Delta, Washington, undated. yard office - Delta Washington, photograph by Don Tank.