Mount Pennell is a prominent 11,413-foot (3,478 m) elevation
summit
A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topography, topographic terms acme, apex, peak (mountain peak), and zenith are synonymous.
The term (mountain top) is generally used ...
located in eastern
Garfield County,
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.
Mount Pennell is the second-highest mountain in the
Henry Mountains
The Henry Mountains is a mountain range located in the southeastern portion of the U.S. state of Utah that runs in a generally north-south direction, extending over a distance of about . They were named by Almon Thompson in honor of Joseph Henry ...
, following
Mount Ellen, 10.6 miles to the north. It is situated in a dry, rugged, and sparsely settled region east of
Capitol Reef National Park
Capitol Reef National Park is an American national park in south-central Utah. The park is approximately long on its northsouth axis and just wide on average. The park was established in 1971 to preserve of desert landscape and is open all ye ...
, on primitive land administered by the
Bureau of Land Management
The Bureau of Land Management (BLM) is an agency within the United States Department of the Interior responsible for administering federal lands. Headquartered in Washington DC, and with oversight over , it governs one eighth of the country's la ...
. Several deep canyons cut the sides of the mountain, which on the higher slopes supports oak, Ponderosa pine, subalpine fir, spruce, Douglas fir, and aspen. 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 this mountain drains into tributaries of the nearby
Colorado River
The Colorado River ( es, Río Colorado) is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and northern Mexico. The river drains an expansive, arid drainage basin, watershed that encompasses parts of ...
.
History
This mountain was first called ''Un-chu'-ka-ret'' by the native
Paiute
Paiute (; also Piute) refers to three non-contiguous groups of indigenous peoples of the Great Basin. Although their languages are related within the Numic group of Uto-Aztecan languages, these three groups do not form a single set. The term "Pai ...
.
Almon Harris Thompson served as chief
topographer
Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the land forms and features themselves, or a description or depiction in maps.
Topography is a field of geoscience and planetary sc ...
and
geographer
A geographer is a physical scientist, social scientist or humanist whose area of study is geography, the study of Earth's natural environment and human society, including how society and nature interacts. The Greek prefix "geo" means "earth" a ...
of
John Wesley Powell
John Wesley Powell (March 24, 1834 – September 23, 1902) was an American geologist, U.S. Army soldier, explorer of the American West, professor at Illinois Wesleyan University, and director of major scientific and cultural institutions. He ...
's Second Geographical Expedition (1871–1875) when he named Mount Ellen after his wife,
Ellen Powell Thompson
Ellen Louella (Nellie) Powell Thompson (1840–1911) was an American naturalist and botanist, and an active advocate for women's suffrage.
Life
Ellen Louella (Nellie) Powell Thompson was born in Ohio to parents of English origin. Her siblings i ...
, and Mount Pennell was later named for his friend
Joseph Pennell
Joseph Pennell (July 4, 1857 – April 23, 1926) was an American draftsman, etcher, lithographer and illustrator for books and magazines. A prolific artist, he spent most of his working life in Europe, and is known for his interest in landmarks, l ...
(1857–1926), an
American
American(s) may refer to:
* American, something of, from, or related to the United States of America, commonly known as the "United States" or "America"
** Americans, citizens and nationals of the United States of America
** American ancestry, pe ...
artist and author. Thompson also named
Mount Hillers
Mount Hillers is a summit in the Henry Mountains range, in Garfield County, Utah, in the United States. Its elevation is .
It was named by Almon Harris Thompson for John Karl Hillers, a government photographer.
Climate
Spring and fall are the ...
, seven miles to the southeast.
Through his work on the Powell expedition, and later as a
geographer
A geographer is a physical scientist, social scientist or humanist whose area of study is geography, the study of Earth's natural environment and human society, including how society and nature interacts. The Greek prefix "geo" means "earth" a ...
at the
U.S. Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and ...
, Thompson was responsible for naming many geographical features in the
Western United States
The Western United States (also called the American West, the Far West, and the West) is the region comprising the westernmost states of the United States. As American settlement in the U.S. expanded westward, the meaning of the term ''the Wes ...
.
The American
geologist
A geologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them. Geologists usually study geology, earth science, or geophysics, althou ...
Grove Karl Gilbert
Grove Karl Gilbert (May 6, 1843 – May 1, 1918), known by the abbreviated name G. K. Gilbert in academic literature, was an American geologist.
Biography
Gilbert was born in Rochester, New York and graduated from the University of Rochester. D ...
surveyed this area in 1875 and 1876, and published his findings in 1879 as a monograph, ''The Geology of the Henry Mountains''. The term
laccolith
A laccolith is a body of intrusive rock with a dome-shaped upper surface and a level base, fed by a conduit from below. A laccolith forms when magma (molten rock) rising through the Earth's crust begins to spread out horizontally, prying ap ...
was first applied as ''laccolite'' by Gilbert after his study of intrusions of
diorite
Diorite ( ) is an intrusive igneous rock formed by the slow cooling underground of magma (molten rock) that has a moderate content of silica and a relatively low content of alkali metals. It is intermediate in composition between low-silic ...
in the Henry Mountains.
Climate
Spring and fall are the most favorable seasons to visit Mount Pennell. 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.
See also
*
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 ...
*
Laccolith
A laccolith is a body of intrusive rock with a dome-shaped upper surface and a level base, fed by a conduit from below. A laccolith forms when magma (molten rock) rising through the Earth's crust begins to spread out horizontally, prying ap ...
*
List of mountain peaks of Utah
This article comprises three sortable tables of major mountain peaksThis article defines a significant summit as a summit with at least of topographic prominence, and a major summit as a summit with at least of topographic prominence. All ...
References
External links
* Weather forecast
Mount Pennell
{{DEFAULTSORT:Pennell, Mount
Mountains of Utah
Mountains of Garfield County, Utah
North American 3000 m summits