Featured in this panoramic northwest-looking photograph is the oldest national park in the world, Yellowstone National Park, which encompasses approximately 3500 square miles (9000 square kilometers) of high plateau country in northwest Wyoming. With approximately 300 geysers and 10 000 hot springs and steam vents, the park boasts the world’s largest, most varied collection of geothermal phenomena. Viewing clockwise from the Teton Range and Jackson Lake, which lie south-southwest of Yellowstone Lake, are the Tobacco Root Mountains of Montana (top center); the Madison and Gallatin Ranges of southern Montana; the Little Belt Mountains of Montana (top right) with the Absaroka Mountains of Montana and northern Wyoming to their south; the Pryor Mountains of southern Montana; the northern Bighorn Mountains of north-central Wyoming (bottom right); and the lighter Bighorn Basin of Wyoming between the Bighorn Mountains and Yellowstone (bottom).