Mystic Falls, Waterfall in Yellowstone National Park, United States

Mystic Falls is a waterfall in Yellowstone National Park where water drops about 70 feet (21 meters) over several tiers of rock. The creek feeding this cascade originates from the Madison Plateau and flows through layered stone formations on its way down.

The 1872 Hayden Geologic Survey named the cascade Little Firehole Falls. In 1885 the Arnold Hague Geological Survey renamed it Mystic Falls, and the sources give no reason for the change. The falls lie on the Little Firehole River, a tributary of the Firehole River, and are reached by the 1.2-mile Mystic Falls Trail from Biscuit Basin in the Upper Geyser Basin.

The name changed twice: the 1872 Hayden Geologic Survey called the cascade Little Firehole Falls, and in 1885 the Arnold Hague Geological Survey renamed it Mystic Falls, with no recorded reason. The 1.2-mile (1.9 km) Mystic Falls Trail leaves from Biscuit Basin in the Upper Geyser Basin.

The trail starts at the Biscuit Basin parking lot and offers two route options: a shorter direct path or a longer loop that includes views of the basin. Visitors should wear sturdy shoes as the ground can be uneven in places.

Mystic Falls was first named Little Firehole Falls by members of the 1872 Hayden Geologic Survey. In 1885 the Arnold Hague Geological Survey renamed it Mystic Falls, and no record explains why. The falls drop 70 feet (21 m) on the Little Firehole River, reached by a 1.2-mile (1.9 km) trail from Biscuit Basin.