Gannett Peak
West face of Gannett Peak
Highest point
Elevation13,810 ft (4,210 m)[1]
Prominence7,076 ft (2,157 m)
Parent peakLongs Peak[2]
Isolation290.36 mi (467.29 km)[3]
Listing
Coordinates43°11′03″N 109°39′15″W / 43.184202022°N 109.654233614°W / 43.184202022; -109.654233614[4]
Geography
Gannett Peak is located in Wyoming
Gannett Peak
Gannett Peak
Wyoming
LocationFremont and Sublette Counties, Wyoming, United States
Parent rangeWind River Range
Topo mapUSGS Gannett Peak
Climbing
First ascent1922 by A. Tate and F. Stahlnaker
Easiest routerock/ice climb

Gannett Peak[5] is the highest mountain peak in the U.S. state of Wyoming at 13,810 feet (4,210 m). It lies in the Wind River Range within the Bridger Wilderness of the Bridger-Teton National Forest. Straddling the Continental Divide along the boundary between Fremont and Sublette counties, it has the second greatest topographic prominence in the state (7076') after Cloud Peak (7077'), and is the highest ground for 290.36 miles (467.29 kilometers) in any direction.

Overview

Geographically, Gannett Peak is the apex of the entire Central Rockies, the largely continuous chain of mountains occupying the states of Wyoming, Idaho and Montana. Named in 1906 for American geographer Henry Gannett,[6] the peak is also the high point of the Wind River Range. The mountain slopes are located in both Bridger-Teton National Forest and Shoshone National Forest.

Gannett is the highest peak within what is better known as the Greater Yellowstone Ecosystem and is the highest peak in the Rocky Mountains outside of Colorado. The 896-acre (3.63 km2) Gannett Glacier, which is likely the largest single glacier in the American portion of the Rocky Mountains, extends across the northern slopes of the mountain. Minor Glacier is situated in the western cirque of the peak while Dinwoody and Gooseneck Glaciers can be found on the southeast side of the mountain.

Gannett Glacier on the north side of the peak

Gannett Peak is in the heart of a remote and rugged wilderness. Because of this, its elevation, and extreme weather, it is often considered by mountaineers to be one of the most difficult U.S. state high points to reach, after Denali and possibly Granite Peak.

Climate

Climate data for Gannett Peak 43.1816 N, 109.6583 W, Elevation: 12,776 ft (3,894 m) (1991–2020 normals)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean daily maximum °F (°C) 18.2
(−7.7)		 17.6
(−8.0)		 23.1
(−4.9)		 28.8
(−1.8)		 37.7
(3.2)		 48.2
(9.0)		 57.8
(14.3)		 56.6
(13.7)		 47.9
(8.8)		 35.5
(1.9)		 23.9
(−4.5)		 17.6
(−8.0)		 34.4
(1.3)
Daily mean °F (°C) 8.7
(−12.9)		 7.4
(−13.7)		 12.2
(−11.0)		 17.1
(−8.3)		 25.9
(−3.4)		 35.7
(2.1)		 44.3
(6.8)		 43.2
(6.2)		 35.3
(1.8)		 24.4
(−4.2)		 14.6
(−9.7)		 8.4
(−13.1)		 23.1
(−5.0)
Mean daily minimum °F (°C) −0.8
(−18.2)		 −2.8
(−19.3)		 1.3
(−17.1)		 5.5
(−14.7)		 14.0
(−10.0)		 23.2
(−4.9)		 30.8
(−0.7)		 29.8
(−1.2)		 22.7
(−5.2)		 13.4
(−10.3)		 5.3
(−14.8)		 −0.7
(−18.2)		 11.8
(−11.2)
Average precipitation inches (mm) 2.97
(75)		 3.04
(77)		 3.87
(98)		 5.59
(142)		 4.36
(111)		 3.07
(78)		 2.11
(54)		 2.10
(53)		 3.27
(83)		 3.94
(100)		 3.00
(76)		 2.84
(72)		 40.16
(1,019)
Source: PRISM Climate Group[7]


Hazards

Encountering bears is a concern in the Wind River Range.[8] There are other concerns as well, including bugs, wildfires, adverse snow conditions and nighttime cold temperatures.[9]

Importantly, there have been notable incidents, including accidental deaths, due to falls from steep cliffs (a misstep could be fatal in this class 4/5 terrain) and due to falling rocks, over the years, including 1993,[10] 2007 (involving an experienced NOLS leader),[11] 2015[12] and 2018.[13] Other incidents include a seriously injured backpacker being airlifted near SquareTop Mountain[14] in 2005,[15] and a fatal hiker incident (from an apparent accidental fall) in 2006 that involved state search and rescue.[16] The U.S. Forest Service does not offer updated aggregated records on the official number of fatalities in the Wind River Range.

See also

References

  1. ↑ "Gannett Peak NAVD88 Elevation".
  2. ↑ "Gannett Peak". ListsOfJohn.com. Retrieved 2008-12-05.
  3. ↑ "Gannett Peak Isolation".
  4. ↑ "Gannett Peak Latitude/Longitude (WGS84)".
  5. ↑ U.S. Geological Survey Geographic Names Information System: Gannett Peak
  6. ↑ Penry, Jerry (27 October 2007). "The Father of Government Mapmaking: Henry Gannett". American Surveyor. Retrieved 2008-09-28.
  7. ↑ "PRISM Climate Group, Oregon State University". PRISM Climate Group, Oregon State University. Retrieved September 28, 2023. To find the table data on the PRISM website, start by clicking Coordinates (under Location); copy Latitude and Longitude figures from top of table; click Zoom to location; click Precipitation, Minimum temp, Mean temp, Maximum temp; click 30-year normals, 1991-2020; click 800m; click Retrieve Time Series button.
  8. ↑ Staff (April 24, 2017). "Bear Safety in Wyoming's Wind River Country". WindRiver.org. Archived from the original on July 26, 2021. Retrieved May 31, 2022.
  9. ↑ Ballou, Dawn (July 27, 2005). "Wind River Range condition update - Fires, trails, bears, Continental Divide". PineDaleOnline News. Archived from the original on April 21, 2021. Retrieved May 31, 2022.
  10. ↑ Staff (1993). "Falling Rock, Loose Rock, Failure to Test Holds, Wyoming, Wind River Range, Seneca Lake". American Alpine Club. Archived from the original on July 26, 2021. Retrieved May 31, 2022.
  11. ↑ MacDonald, Dougald (August 14, 2007). "Trundled Rock Kills NOLS Leader". Climbing. Archived from the original on July 26, 2021. Retrieved May 31, 2022.
  12. ↑ Staff (December 9, 2015). "Officials rule Wind River Range climbing deaths accidental". Casper Star-Tribune. Archived from the original on July 26, 2021. Retrieved May 31, 2022.
  13. ↑ Dayton, Kelsey (August 24, 2018). "Deadly underestimation". WyoFile News. Archived from the original on July 26, 2021. Retrieved May 31, 2022.
  14. ↑ Funk, Jason (2009). "Squaretop Mountain Rock Climbing". Mountain Project. Archived from the original on July 26, 2021. Retrieved May 31, 2022.
  15. ↑ Staff (July 22, 2005). "Injured man rescued from Square Top Mtn - Tip-Top Search & Rescue helps 2 injured on the mountain". PineDaleOnline News. Archived from the original on July 26, 2021. Retrieved May 31, 2022.
  16. ↑ Staff (September 1, 2006). "Incident Reports - September, 2006 - Wind River Search". WildernessDoc.com. Archived from the original on January 27, 2020. Retrieved May 31, 2022.
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