Northern Pacific Engineering Drawing: Shop Plan - Trainman Walk, Bridge 50 - Beaver Creek, west of Childs, Montana, Line Segment 044, Milepost 50.7. Sheet 1060 - 49, undated.

Northern Pacific Engineering Drawing: Shop Plan - Track Switch, Scale, Longview, Washington, Line Segment 613. Sheet 245 - 6964 - 12, undated.

Northern Pacific Engineering Drawing: Shop Plan - Track Scale, Scale, Longview, Washington, Line Segment 613. Sheet 245 - 6964 - 14, undated.

Northern Pacific Engineering Drawing: Shop Plan - Track Scale, Scale, Longview, Washington, Line Segment 613. Sheet 245 - 6964 - 15, undated.

Northern Pacific Engineering Drawing: Shop Plan - Track Scale, Electronic Track Scale, Pasco, Washington, Line Segment 046. Sheet H118401, undated.

Northern Pacific Engineering Drawing: Shop Plan - Track Scale, Electronic Track Scale, Pasco, Washington, Line Segment 046. Sheet 237 - 6547, undated.