Compiled from the official Records of the General Land Office. . . . Compiled and Drawn by A. F. Dinsmore, 1887. 1 inch to 12 miles. County boundaries, military and Indian reservations, boundaries of Yellowstone National Park, and railroad land-grant limits are shown in color. Also shows status of public land surveys, towns and cities, roads and trails, and railroad lines.
Relief is shown by hachures.
Also a black and white base map for this date. Compiled from the official Records of the General Land Office. . . . Compiled and Drawn by A. F. Dinsmore, 1887. 1 inch to 12 miles. Over-printed to show Wyoming Oil Belt, oil and coal fields, and mining areas.