Assembly Hall Peak is a 6,395-foot-elevation (1,949-meter) summit in Emery County, Utah, United States.

Assembly Hall Peak is part of the San Rafael Swell and is located in the Mexican Mountain Wilderness Study Area which is administered by the Bureau of Land Management.

Topographic relief is significant as the summit rises nearly 1,300 feet (396 meters) above the river in 0.75 mile (1.2 km).

[3] This erosional remnant along the San Rafael River is composed of Wingate Sandstone,[4] which is the remains of wind-borne sand dunes deposited approximately 200 million years ago in the Late Triassic.

[6] This desert climate receives less than 10 inches (250 millimeters) of annual rainfall, and snowfall is generally light during the winter.