Civil engineers -- Montana -- 20th century

Abstract: Photographs, typescript reports, and other documents of Horace L. Scott as civil engineer for the United States Reclamation Service. Includes 240 photographs and 12 postcards in 3 photograph albums; 20 loose photographs and 2 loose postcards; 4 typescript reports with 69 photographs and 36 blueprints for St. Mary's Canal bound in, produced by the United States Department of the Interior; 3 printed maps of United States Reclamation Service projects and 3 printed topographical folding maps of...