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Coordinates: 32°18′27″N 113°22′46″W / 32.30750°N 113.37944°W / 32.30750; -113.37944
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{{Short description|Landform in Yuma County, Arizona}}
⚫
The '''Bryan Mountains''' are a small mountain range in the [[Sonoran Desert]] of southwestern [[Arizona]]. The range is located in southeastern [[Yuma County, Arizona]], about 75 miles southeast of [[Yuma, Arizona]] and about 35 miles west of [[Ajo, Arizona]]. The range is approximately ten miles long and about two miles wide at its widest point. The highpoint of the range is 1,794 feet (547 meters) above sea level and is located at 32°18'27"N, 113°22'46"W (NAD 1983 datum). The range is located entirely within the [[Cabeza Prieta National Wildlife Refuge]]. Geologically, the Bryan Mountains are an extension southeastwards of the [[block fault]]ed [[Mohawk Mountains]], and what are now the Bryan Mountains were actually considered part of the Mohawk Mountains well into the middle of the 20th century.
{{distinguish|Brian Head (mountain)}}
{{Infobox mountain
|name=Bryan Mountains
|photo=
|photo_size=
|photo_caption=
|country = United States
|state = Arizona
|region=(northwest)-[[Sonoran Desert]]
|district_type=County
|district=[[Yuma County, Arizona|Yuma County]]
|settlement_type=Communities
|settlement={{enum|[[Mohawk, Arizona]]|[[Ajo, Arizona]]}}


<!--coordinates from "unnamed" peak, 32,18,27-N, 113,22,46-W-->
⚫
The range was named in 1933 by Eldred D. Wilson<ref>Wilson, E.D. 1933. ''Geology and Mineral Deposits of Southern Yuma County, Arizona.'' Arizona Bureau of Mines Bulletin 134, vol. 4, No. 2. Tucson</ref> for Kirk Bryan, a geologist and explorer with the [[U.S. Geological Survey]] (USGS) who in the early 1920's conducted a reconnaissance of the area and wrote a detailed guide describing the area's geology and difficult-to-find surface water resources<ref>Bryan, Kirk. 1925. ''The Papago Country, Arizona: A Geographic, Geologic, and Hydrologic Reconnaissance with a Guide to Desert Watering Places.'' Water Supply Paper No. 499. United States Geological Survey. Washington, D.C.</ref>. Bryan was one of several geologists and geographers dispatched by the USGS in the early part of the 20th century to explore and record the physical characteristics of the arid southwestern United States. The Water Supply Papers published by Bryan and others are now considered classic accounts of what the Sonoran and [[Mojave Desert]]s were like before the post-World War II population boom transformed the region.
| range_coordinates = {{coord|32|18|27|N|113|22|46|W|type:mountain|format=dms|display=inline,title}}
| range_coordinates_ref=
| geology=
| border={{ubl|[[Mohawk Mountains]]-NNW|[[Granite Mountains (Arizona)|Granite Mtns]]-E|[[Mohawk Valley (Arizona)|Mohawk Valley]]-SW|[[Sierra Pinta]] and [[Tule Desert (Arizona)|Tule Desert]]-SW}}
| orogeny=
| length_mi=10| length_orientation=NW-SE
| width_mi=3 | width_orientation=
| highest=Un<nowiki>named</nowiki>
| elevation_ft=1794
| elevation_ref=
| coordinates =
| coordinates_ref=
| map= USA Arizona
| map_size = 220
| map_caption= Bryan Mountains<br/> in [[Arizona]]
}}


⚫
The '''Bryan Mountains''' are a small mountain range in the northwestern [[Sonoran Desert]] of southwestern [[Arizona]]. The range is located in southeastern [[Yuma County, Arizona|Yuma County]], about {{cvt|75|mi}} southeast of [[Yuma, Arizona|Yuma]] and about {{cvt|35|mi}} west of [[Ajo, Arizona|Ajo]]. The range is approximately ten miles long and about three miles wide at its widest point. The highpoint of the range is {{convert|1,794|ft|m|abbr=off|sp=us}} above sea level and is located at 32°18'27"N, 113°22'46"W (NAD 1983 datum). The range is located entirely within the [[Cabeza Prieta National Wildlife Refuge]].
⚫
Wilson evidently intended for the Bryan Mountains to extend even farther to the north and south than what was eventually recorded on USGS maps of the area. In Wilson's geologic map of Yuma County published in 1933, the Bryan's are depicted as including what are now considered the southern third of the Mohawk Mountains to the north of the present-day Bryan's. The map shows a series of outlying hills to the south and southwest as part of the Bryan's as well. For some unexplained reason, the surveyors of the [[Army Map Service]] and the USGS eventually depicted a much less expansive version of the range when the first 15-minute topographic maps of the area were produced in the mid-1960's<ref>U.S. Geological Survey. 1965. ''Granite Mountains Quadrangle, Arizona.'' 15-minute Series (Topographic). N3215-W11315/15. Washington, D.C.</ref>, and that depiction has carried over to more recent USGS maps produced today.<ref>Broyles, Bill., Luke Evans, Richard Stephen Felger, and Gary Nabhan. 2007. ''Our Grand Desert: A Gazetteer for Northwestern Sonora, Southwestern Arizona, and Northeastern Baja California.'' In ''Dry Borders: Great Natural Reserves of the Sonoran Desert,'' Broyles, B. and R. Felger, editors. University of Utah Press.</ref>


Geologically, the Bryan Mountains are an extension southeastwards of the [[block fault]]ed [[Mohawk Mountains]], and what are now the Bryan Mountains were actually considered part of the Mohawk Mountains well into the middle of the 20th century.

==History==
===History of the name===
⚫
The range was named in 1933 by Eldred D. Wilson<ref>Wilson, E.D. 1933. ''Geology and Mineral Deposits of Southern Yuma County, Arizona.'' Arizona Bureau of Mines Bulletin 134, vol. 4, No. 2. Tucson</ref> for Kirk Bryan, a geologist and explorer with the [[U.S. Geological Survey]] (USGS) who in the early 1920s conducted a reconnaissance of the area and wrote a detailed guide describing the area's geology and difficult-to-find surface water resources.<ref>Bryan, Kirk. 1925. ''The Papago Country, Arizona: A Geographic, Geologic, and Hydrologic Reconnaissance with a Guide to Desert Watering Places.'' Water Supply Paper No. 499. United States Geological Survey. Washington, D.C.</ref> Bryan was one of several geologists and geographers dispatched by the USGS in the early part of the 20th century to explore and record the physical characteristics of the arid southwestern United States. The Water Supply Papers published by Bryan and others are now considered classic accounts of what the Sonoran and [[Mojave Desert]]s were like before the post-World War II population boom transformed the region.

⚫
Wilson evidently intended for the Bryan Mountains to extend even farther to the north and south than what was eventually recorded on USGS maps of the area. In Wilson's geologic map of Yuma County published in 1933, the Bryan's are depicted as including what are now considered the southern third of the Mohawk Mountains to the north of the present-day Bryan's. The map shows a series of outlying hills to the south and southwest as part of the Bryan's as well. For some unexplained reason, the surveyors of the [[Army Map Service]] and the USGS eventually depicted a much less expansive version of the range when the first 15-minute topographic maps of the area were produced in the mid-1960s,<ref>U.S. Geological Survey. 1965. ''Granite Mountains Quadrangle, Arizona.'' 15-minute Series (Topographic). N3215-W11315/15. Washington, D.C.</ref> and that depiction has carried over to more recent USGS maps produced today.<ref>Broyles, Bill, Luke Evans, Richard Stephen Felger, and Gary Nabhan. 2007. ''Our Grand Desert: A Gazetteer for Northwestern Sonora, Southwestern Arizona, and Northeastern Baja California.'' In ''Dry Borders: Great Natural Reserves of the Sonoran Desert,'' Broyles, B. and R. Felger, editors. University of Utah Press.</ref>

==See also==
⚫
* [[Valley and range sequence-Southern Yuma County]]
⚫
* [[List of mountain ranges of Yuma County, Arizona]]
⚫
* [[List of mountain ranges of Arizona]]
* [[Cabeza Prieta National Wildlife Refuge]]


== References ==
== References ==
{{reflist}}
{{reflist}}


==See also==
==External links==
* [https://web.archive.org/web/20100617123214/http://simkin.asu.edu/pub/movies.html High Altitude view of Mohawk Mountains and Mohawk Valley (Arizona) ]; [https://web.archive.org/web/20100620042853/http://simkin.asu.edu/pub/earth/us/az/mohawk/mohawk.2833.png high-definition aerial view] – green Gila River Valley on right, view northwest: shows [[Sierra Pinta]], [[Cabeza Prieta Mountains]] and [[Copper Mountains]]; narrow [[Gila Mountains (Yuma County)]] at distance; Bryan Mountains at center bottom, to right: north of [[Granite Mountains (Arizona)|Granite Mountains]]
⚫
*[[Valley and range sequence-Southern Yuma County]]
⚫
*[[List of mountain ranges of Yuma County, Arizona]]
⚫
*[[List of mountain ranges of Arizona]]


{{Mountains of Arizona}}

[[Category:Mountain ranges of the Sonoran Desert]]
[[Category:History of Yuma County, Arizona]]
[[Category:Mountain ranges of Yuma County, Arizona]]
[[Category:Mountain ranges of Yuma County, Arizona]]
[[Category:Mountain ranges of Arizona]]
[[Category:Mountain ranges of Arizona]]

{{Arizona-geo-stub}}

Latest revision as of 23:10, 20 June 2023

Not to be confused with Brian Head (mountain).
Bryan Mountains
Bryan Mountains is located in Arizona
Bryan Mountains
Bryan Mountains
Bryan Mountains
in Arizona
Highest point
PeakUnnamed
Elevation1,794 ft (547 m)
Dimensions
Length10 mi (16 km) NW-SE
Width3 mi (4.8 km)
Geography
CountryUnited States
StateArizona
Region(northwest)-Sonoran Desert
CountyYuma County
CommunitiesMohawk, Arizona and Ajo, Arizona
Range coordinates32°18′27″N 113°22′46″W / 32.30750°N 113.37944°W / 32.30750; -113.37944
Borders on

The Bryan Mountains are a small mountain range in the northwestern Sonoran Desert of southwestern Arizona. The range is located in southeastern Yuma County, about 75 mi (121 km) southeast of Yuma and about 35 mi (56 km) west of Ajo. The range is approximately ten miles long and about three miles wide at its widest point. The highpoint of the range is 1,794 feet (547 meters) above sea level and is located at 32°18'27"N, 113°22'46"W (NAD 1983 datum). The range is located entirely within the Cabeza Prieta National Wildlife Refuge.

Geologically, the Bryan Mountains are an extension southeastwards of the block faulted Mohawk Mountains, and what are now the Bryan Mountains were actually considered part of the Mohawk Mountains well into the middle of the 20th century.

History

[edit]

History of the name

[edit]

The range was named in 1933 by Eldred D. Wilson[1] for Kirk Bryan, a geologist and explorer with the U.S. Geological Survey (USGS) who in the early 1920s conducted a reconnaissance of the area and wrote a detailed guide describing the area's geology and difficult-to-find surface water resources.[2] Bryan was one of several geologists and geographers dispatched by the USGS in the early part of the 20th century to explore and record the physical characteristics of the arid southwestern United States. The Water Supply Papers published by Bryan and others are now considered classic accounts of what the Sonoran and Mojave Deserts were like before the post-World War II population boom transformed the region.

Wilson evidently intended for the Bryan Mountains to extend even farther to the north and south than what was eventually recorded on USGS maps of the area. In Wilson's geologic map of Yuma County published in 1933, the Bryan's are depicted as including what are now considered the southern third of the Mohawk Mountains to the north of the present-day Bryan's. The map shows a series of outlying hills to the south and southwest as part of the Bryan's as well. For some unexplained reason, the surveyors of the Army Map Service and the USGS eventually depicted a much less expansive version of the range when the first 15-minute topographic maps of the area were produced in the mid-1960s,[3] and that depiction has carried over to more recent USGS maps produced today.[4]

See also

[edit]

References

[edit]
  1. ^ Wilson, E.D. 1933. Geology and Mineral Deposits of Southern Yuma County, Arizona. Arizona Bureau of Mines Bulletin 134, vol. 4, No. 2. Tucson
  2. ^ Bryan, Kirk. 1925. The Papago Country, Arizona: A Geographic, Geologic, and Hydrologic Reconnaissance with a Guide to Desert Watering Places. Water Supply Paper No. 499. United States Geological Survey. Washington, D.C.
  3. ^ U.S. Geological Survey. 1965. Granite Mountains Quadrangle, Arizona. 15-minute Series (Topographic). N3215-W11315/15. Washington, D.C.
  4. ^ Broyles, Bill, Luke Evans, Richard Stephen Felger, and Gary Nabhan. 2007. Our Grand Desert: A Gazetteer for Northwestern Sonora, Southwestern Arizona, and Northeastern Baja California. In Dry Borders: Great Natural Reserves of the Sonoran Desert, Broyles, B. and R. Felger, editors. University of Utah Press.
[edit]
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