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Agathla Peak
Aghaałą́ (in Navajo) El Capitan (in Spanish)
Highest point
Elevation	7,099 ft (2,164 m) NAVD 88
Prominence	1,436 ft (438 m)
Coordinates	36°49′34″N 110°13′31″W / 36.826246928°N 110.225252542°W / 36.826246928; -110.225252542
Geography
Location	Navajo Nation Navajo County, Arizona, U.S.
Topo map	USGS Agathla Peak
Geology
Mountain type	eroded volcanic plug
Volcanic field	Navajo Volcanic Field

Agathla Peak or Agathlan (Navajo: Aghaałą́, Spanish: El Capitan) is a peak south of Monument Valley, Arizona, which rises over 1,500 feet (460 meters) above the surrounding terrain. It is 7 miles (11 km) north of Kayenta and is visible from U.S. Route 163. The English designation Agathla is derived from the Navajo name aghaałą́ meaning 'much wool', apparently for the fur of antelope and deer accumulating on the rock. The mountain is considered sacred by the Navajo.

Agathla Peak is an eroded volcanic plug consisting of volcanic breccia cut by dikes of an unusual igneous rock called minette. It is one of many such volcanic diatremes that are found in Navajo country of northeast Arizona and northwest New Mexico. Agathla Peak and Shiprock in New Mexico are the most prominent. These rocks are part of the Navajo Volcanic Field, in the southern Colorado Plateau. Ages of these minettes and associated more unusual igneous rocks cluster near 25 million years.

Climbing history

Rock climbing is not currently allowed on Agathla Peak and surrounding Navajo Nation lands; however, in 1949 there were no such restrictions, and the first known ascent of the peak was done on May 29, 1949, by Ray Garner, Herb Conn, and Lee Pedrick The climbers followed what is now called "West Face" route (class 5.8), which is 550 feet long, and they brought over 70 pounds of climbing equipment including: 50 pitons, 40 tamp-in bolts (plus two sets of drills, tamp tools and hammers), 15 carabiners, four 120-foot nylon ropes, and twelve quarts of water. The climbing took a whole day and they had to spend the night on the top before descending the next day.

See also

• Owl Rock
• Chaistla Butte

References

1. ^ "Agathla Peak, Arizona". Peakbagger.com. Retrieved October 19, 2008.
2. "Agathla Peak Cairn". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce. Retrieved August 12, 2016.
3. "Agathla Peak". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved October 19, 2008.
4. "Navajo Nation Rules & Regulations". Retrieved May 7, 2021.
5. Roper, Steve (1970). "Four Corners". Ascent: 27.
6. Garner, Ray (1950). "Agathlan". American Alpine Journal: 406–414. Archived from the original on July 15, 2014.
7. Green, S.M. (1999). Rock Climbing Arizona,. Classic Rock Climbs Series. Globe Pequot Press. ISBN 9781560448136. LCCN 99030358. Archived from the original on July 23, 2014.
8. Garner, Virginia (August 1950). "The First Ascent of Agathlan". Arizona Highways. 26 (8): 4–9.(PDF)

Further reading

• Baars, Donald L. (1995). Navajo Country. Albuquerque: University of New Mexico Press. pp. 78–83. ISBN 978-0-8263-1587-8.

External links

• "El Capitan (Agathla Peak), Monument Valley, Arizona". Images of the World. Archived from the original on March 23, 2012.
• "El Capitan (Arizona)". PBase.com.
• Agathla Peak Peakware, World Mountain Encyclopedia.

• Colorado Plateau
• Diatremes of Arizona
• Landforms of Navajo County, Arizona
• Religious places of the Indigenous peoples of North America
• Oligocene volcanism
• Sacred mountains of the Americas
• Volcanic plugs of Arizona
• Geography of the Navajo Nation
• Mountains of Navajo County, Arizona
• Volcanoes of Arizona