A. Yellowstone National Park. Northern Pacific Railroad, by Poole Bros., dated 1893 (18.0 x 23.9"). This uncommon chromolithographic bird's-eye view was published as a promotional brochure by the Northern Pacific Railroad. The map identifies numerous attractions in the park, lodging, roads and trails. The verso is filled with related text and illustrations. Condition: Clean and bright. Issued folding with numerous fold separations primarily along the bottom fold that have been closed on verso with both archival and non-archival tape. (B)

B. Yellowstone National Park and Part of Abutting Forest Reserve from Maps by the U.S. Geological Survey, by U.S. Geological Survey, circa 1904 (19.9 x 17.9"). This beautifully colored topographical map was issued by the Park Superintendent after maps by the U.S. Geological Survey. It shows the entire park in great detail at a scale of four miles per inch. Legend identifies ranger stations, snowshoe cabins, existing roads, unused roads, trails and more. It locates the remote Shoshone, Lewis and Heart Lakes; names the Upper, Shoshone, Gibbon, and Heart Lake Geyser Basins, Mud Geysers, Mammoth Hot Springs and more. There is terrific detail of topography with contour intervals at 100 feet, watershed and numerous features. Condition: A clean example, issued folding, with a trimmed but adequate left margin. (A)

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See description above.