United States Department of the Interior Geological SurveySegar, Raymond W., 1914-2000Dewey Lake NW quadrangle topographic map (N4737.5-W9252.5/7.5) featuring handwritten notations by Ray Segar in red ink and pencil regarding logging railroad lines and camps in the Dewey Lake area. The hand written notations include information on the following: Swift Refrigerator Lines (SRL) and logging camps noted with 'C'.JPEGengUnited States Department of the Interior Geological SurveyPublicCommunicationDewey Lake NW Quadrangle, Minnesota-St. Louis County, 1955: 7.5 Minute Series (Topographic) MapMapsMinnesota--Dewey TownshipMinnesota1955University of Minnesota