Indian Territory showing railroad systems, June 30, 1902.
In upper right corner: Exhibit 5. In upper left corner: Ninth annual report, Commission to the Five Civilized Tribes. From: United States. Dept. of the Interior annual report, 1902. Available also through the Library of Congress Web site as a raster image.
United States. Department of the Interior - United States. Commission to the Five Civilized Tribes