Assembly Hall Peak

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

Assembly Hall Peak
Northwest aspect
Highest point
Elevation	6,395 ft (1,949 m)[1][2]
Prominence	1,055 ft (322 m)[1]
Parent peak	Window Blind Peak (7,030 ft)[1]
Isolation	1.54 mi (2.48 km)[1]
Coordinates	39°04′04″N 110°39′30″W[3]
Geography
Assembly Hall Peak Location in Utah Show map of Utah Assembly Hall Peak Assembly Hall Peak (the United States) Show map of the United States
Country	United States
State	Utah
County	Emery
Protected area	Mexican Mountain Wilderness
Parent range	San Rafael Swell[2] Colorado Plateau
Topo map	USGS Bottleneck Peak
Geology
Rock age	Late Triassic to Jurassic
Rock type	Wingate Sandstone
Climbing
Easiest route	class 5.10 climbing[1]

Description

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.^[2] Towering nearly 1,300 feet above the surrounding terrain, it is situated 1.66 miles (2.67 km) east-northeast of Bottleneck Peak and 1.52 miles (2.45 km) north of Window Blind Peak, which is the nearest higher neighbor.^[2] Precipitation runoff from the peak drains into the nearby San Rafael River. Topographic relief is significant as the summit rises nearly 1,300 feet (396 meters) 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.^[3]

Geology

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.^[5] 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.^[6] This desert climate receives less than 10 inches (250 millimeters) 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 – class 5.10^[7]
• Heavy Metal – class 5.10^[8]
• Leaning Pillar – class 5.10^[8]
• Lactic Stackidosis – class 5.10+^[8]

See also

• Colorado Plateau
• Mountains portal

Gallery

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• 
  Northwest aspect of Assembly Hall Peak (left) and Peak 5740 (right)
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  Northwest aspect of Assembly Hall Peak (center) viewed with San Rafael River
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  Southwest aspect
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  Southwest aspect