Assembly Hall Peak is a summit in Emery County, Utah, United States.
Description Assembly Hall Peak is part of the San Rafael Swell and is located in the Mexican Mountain Wilderness Area which is administered by the Bureau of Land Management. Towering nearly 1,300 feet above the surrounding terrain, it is situated east-northeast of Bottleneck Peak and north of Window Blind Peak, which is the nearest higher neighbor. Precipitation runoff from the peak drains into the nearby San Rafael River. Topographic relief is significant as the summit rises nearly above the river in 0.75 mile (1.2 km). Access to the mountain is via the Buckhorn Draw Road at Buckhorn Draw Campground. This mountain's toponym has been officially adopted by the U.S. Board on Geographic Names.
Geology This erosional remnant along the San Rafael River is composed of Wingate Sandstone,Stephen E. Strom, The Greater San Rafael Swell, University of Arizona Press (2022), , p. 62–63. which is the remains of wind-borne sand dunes deposited approximately 200 million years ago in the Late Triassic.Mexican Mountain WSA, Utah BLM Statewide Wilderness Draft Environmental Impact Statement, Volume VI, East-Central Region, page 15. The Wingate overlays lightly colored Chinle Formation around the lower slopes of the peak and the surrounding area is composed of Moenkopi Formation.
Climate According to the Köppen climate classification system, it is located in a Cold semi-arid climate zone, which is defined by the coldest month having an average mean temperature below 32 °F (0 °C), and at least 50% of the total annual precipitation being received during the spring and summer. This desert climate receives less than of annual rainfall, and snowfall is generally light during the winter. Spring and fall are the most favorable seasons to visit Assembly Hall Peak.
Climbing Established climbing routes:
Postcard of the Hanging – Cameron Burns, Selected Climbs in the Desert Southwest: Colorado and Utah, The Mountaineers Books (1999), , p. 167. Heavy Metal – class 5.101995 American Alpine Journal, Mountaineers Books, p. 162. Leaning Pillar – class 5.10 Lactic Stackidosis – class 5.10+
Gallery
See also
Colorado Plateau List of mountains in Utah
References
External links
Weather forecast: Assembly Hall Peak Assembly Hall Peak rock climbing: Mountainproject.com Assembly Hall Peak (photo): Flickr Assembly Hall Peak and Window Blind Peak: Flickr (photo)