Moose Falls, Plunge waterfall in Yellowstone National Park, US.

Moose Falls is a waterfall in Yellowstone National Park that plunges over a steep cliff into Crawfish Creek. The water flows continuously toward the Lewis River system, creating a steady cascade down the rock face.

The falls received its name in 1885 from members of the Arnold Hague Geologic Survey who explored the region. They chose the name based on the large moose populations living in the southern portion of the park.

The name Moose Falls was given in 1885 by members of the Arnold Hague Geologic Survey, who noted the plentiful moose in the southern sections of the park. Visitors today see a plunge waterfall about 30 feet high on Crawfish Creek, reached by an easy trail from the south entrance road.

The falls lie a short distance north of the park's south entrance station and are reachable via a brief walking path. The trailhead is located west of the main entrance road and leads directly to the viewing area.

Moose Falls drops 30 feet (9.1 m) as a plunge waterfall on Crawfish Creek, and the 1885 Arnold Hague Geologic Survey named it for the moose then plentiful in the park's southern sections. The trail to the brink starts 1.2 miles (1.9 km) north of the south entrance station, and the falls sit only 75 yards (69 m) west of the road.