Bridge Mountain (Utah)
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Bridge Mountain is a mountain made of
Navajo Sandstone The Navajo Sandstone is a geological formation in the Glen Canyon Group that is spread across the U.S. states of southern Nevada, northern Arizona, northwest Colorado, and Utah as part of the Colorado Plateau province of the United States.Anonymou ...
in
Zion National Park Zion National Park is an American national park located in southwestern Utah near the town of Springdale. Located at the junction of the Colorado Plateau, Great Basin, and Mojave Desert regions, the park has a unique geography and a variety ...
in Washington County, of southwest
Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...
, United States.


Description

Bridge Mountain is located east of the park headquarters near the south entrance to
Zion Canyon Zion Canyon (also called Little Zion, Mukuntuweap, Mu-Loon'-Tu-Weap, and Straight Cañon; ''weap'' is Paiute for canyon) is a deep and narrow gorge in southwestern Utah, United States, carved by the North Fork of the Virgin River. Nearly the entir ...
. Bridge Mountain was once originally named Crawford Mountain after the Crawford family who were early Mormon settlers in the canyon. But the name was officially changed to Bridge Mountain in 1934 when a natural bridge was discovered on Bridge Mountain. However, it was not a bridge, but a
natural arch A natural arch, natural bridge, or (less commonly) rock arch is a natural landform where an arch has formed with an opening underneath. Natural arches commonly form where inland cliffs, coastal cliffs, fins or stacks are subject to erosion f ...
. For years, rangers in Zion Park told visitors that this was a natural bridge, hence the mountain's name.Zion Arches
National Park Service. A bridge is defined as a subtype of arch that is primarily water-formed. To avoid confusion, the
National Park Service The National Park Service (NPS) is an agency of the United States federal government within the U.S. Department of the Interior that manages all national parks, most national monuments, and other natural, historical, and recreational propertie ...
eventually named the span Crawford Arch. Precipitation
runoff Runoff, run-off or RUNOFF may refer to: * RUNOFF, the first computer text-formatting program * Runoff or run-off, another name for bleed, printing that lies beyond the edges to which a printed sheet is trimmed * Runoff or run-off, a stock market ...
from the mountain drains into tributaries of the North Fork
Virgin River The Virgin River is a tributary of the Colorado River in the U.S. states of Utah, Nevada, and Arizona. The river is about long.Calculated with Google Maps and Google Earth It was designated Utah's first wild and scenic river in 2009, during the ...
. This mountain is composed of
Navajo Sandstone The Navajo Sandstone is a geological formation in the Glen Canyon Group that is spread across the U.S. states of southern Nevada, northern Arizona, northwest Colorado, and Utah as part of the Colorado Plateau province of the United States.Anonymou ...
, with a red
shale Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especial ...
outcropping An outcrop or rocky outcrop is a visible exposure of bedrock or ancient superficial deposits on the surface of the Earth. Features Outcrops do not cover the majority of the Earth's land surface because in most places the bedrock or superficial ...
of the
Kayenta Formation The Kayenta Formation is a geological formation in the Glen Canyon Group that is spread across the Colorado Plateau province of the United States, including northern Arizona, northwest Colorado, Nevada, and Utah. Traditionally has been suggested ...
exposed along the lower slopes.


Climate

Spring and fall are the most favorable seasons to visit Bridge Mountain. According to the
Köppen climate classification The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notabl ...
system, it is located in a
Cold semi-arid climate A semi-arid climate, semi-desert climate, or steppe climate is a dry climate sub-type. It is located on regions that receive precipitation below potential evapotranspiration, but not as low as a desert climate. There are different kinds of semi-ar ...
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.


Gallery

File:Bridge Mountain and West Temple.jpg, Bridge Mountain (left) and
The West Temple The West Temple is a prominent 7,810-foot (2,380 m) mountain summit composed of Navajo Sandstone in Zion National Park in Washington County of Utah, United States. This, the highest feature in Zion Canyon, was originally called "''Temp-o-i-tin-ca ...
seen from the east File:Crawford Arch.JPG, Crawford Arch on Bridge Mountain


See also

*
Geology of the Zion and Kolob canyons area The geology of the Zion and Kolob canyons area includes nine known exposed formations, all visible in Zion National Park in the U.S. state of Utah. Together, these formations represent about 150 million years of mostly Mesozoic-aged sedimenta ...
*
Colorado Plateau The Colorado Plateau, also known as the Colorado Plateau Province, is a physiographic and desert region of the Intermontane Plateaus, roughly centered on the Four Corners region of the southwestern United States. This province covers an area of ...


References


External links

{{stack, {{commons category, Bridge Mountain (Utah)
Zion National Park
National Park Service * Weather
Bridge Mountain
Mountains of Utah Zion National Park Mountains of Washington County, Utah North American 2000 m summits Colorado Plateau