Frank Jay Haynes (1853-1921), Yellowstone Lake from Hotel
Frank Jay Haynes (1853-1921), Yellowstone Lake, Mt Sheridan
Rudolf Cronau (1855-1939) Der Castle-Geysir im Yellowstone-Park. Wyoming. 17. [Castle Geyser Yellowstone Park, Wyoming]
Rudolf Cronau (1855-1939) Die, Mammoth Hot Springs” im Yellowstone-Park. Wyoming. 3. [Hot Springs Yellowstone Park, Wyoming]