Unknown2019-02-042019-02-041955EPM-071-02-007http://hdl.handle.net/20.500.11867/15421Single 10 x 8 inch photograph. Adhesive and typed label on verso. Date est.Photograph from 1880 "shows NP work crew building grade and laying track in western North Dakota."PhotographRailroads--Design and constructionRailroads--Northern Pacific;