The first large canyon on the Yellowstone River, 900 feet deep (275 m) and a half mile (0.8 km) wide.
Discover the magic of the world's first national park, Yellowstone.
Grand Teton National Park is noted for its stunning mountain vistas, its shimmering alpine lakes and its abundant wildlife.
The tower is actually the core of an ancient volcano, rising over 500 feet into the air, with an aspect of columns given by hardened cooled magma.
