Ryan Peak (Idaho)

Ryan Peak, at 11,714 feet (3,570 m) above sea level is the highest peak in the Boulder Mountains of Idaho. Located in Custer County, Ryan Peak is about 0.5 miles (800 m) north of the Blaine County border. The peak is also on the border of Sawtooth National Recreation Area and Salmon-Challis National Forest and partially within the Hemingway–Boulders Wilderness.

Ryan Peak
Ryan Peak viewed from below Castle Peak, Idaho
Ryan Peak viewed from below Castle Peak
Highest point
Elevation11,714 ft (3,570 m)[1]
Prominence3,194 ft (974 m)[1]
Coordinates43°54′08″N 114°24′34″W
Geography
Parent rangeBoulder Mountains
Topo mapUSGS Ryan Peak
Climbing
Easiest routeSimple Scramble, class 2

Ryan Peak is the second highest peak in the Sawtooth National Recreation Area, after Castle Peak as well as the 16th highest peak in Idaho. Kent Peak, which is the second highest peak in the Boulder Mountains is about 0.75 miles (1,210 m) southeast of Ryan Peak.

The primary route to Ryan Peak begins north of Ketchum along Idaho State Highway 75 at the Sawtooth National Recreation Area headquarters. Take national forest road 146 north from the headquarters until you reach the trailhead at the end of the road. Trail 115 ascends the ridge to the southwest of Ryan Peak, and from the ridge Ryan Peak is about a 1 mile (1,600 m) off trail hike from the ridge.[2]

Climate
Climate data for Ryan Peak (ID) 43.9017 N, 114.4105 W, Elevation: 11,106 ft (3,385 m) (1991–2020 normals)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °F (°C) 20.7
(−6.3)		 20.2
(−6.6)		 24.2
(−4.3)		 29.4
(−1.4)		 39.1
(3.9)		 48.6
(9.2)		 60.4
(15.8)		 60.0
(15.6)		 51.1
(10.6)		 38.0
(3.3)		 25.5
(−3.6)		 19.7
(−6.8)		 36.4
(2.4)
Daily mean °F (°C) 13.4
(−10.3)		 11.8
(−11.2)		 14.9
(−9.5)		 19.2
(−7.1)		 28.1
(−2.2)		 36.8
(2.7)		 47.4
(8.6)		 46.7
(8.2)		 38.3
(3.5)		 27.4
(−2.6)		 18.0
(−7.8)		 12.6
(−10.8)		 26.2
(−3.2)
Average low °F (°C) 6.2
(−14.3)		 3.5
(−15.8)		 5.7
(−14.6)		 9.1
(−12.7)		 17.1
(−8.3)		 25.0
(−3.9)		 34.4
(1.3)		 33.4
(0.8)		 25.5
(−3.6)		 16.8
(−8.4)		 10.4
(−12.0)		 5.6
(−14.7)		 16.1
(−8.9)
Average precipitation inches (mm) 4.40
(112)		 3.94
(100)		 4.29
(109)		 3.42
(87)		 3.34
(85)		 2.97
(75)		 0.91
(23)		 0.89
(23)		 1.74
(44)		 2.57
(65)		 3.29
(84)		 4.97
(126)		 36.73
(933)
Source: PRISM Climate Group[3]

References
  1. "Ryan Peak, Idaho". Peakbagger.com. Retrieved 2012-01-15.
  2. Sawtooth National Forest. "Sawtooth National Forest" [map].1:126,720, 1"=2 miles. Twin Falls, Idaho: Sawtooth National Forest, United States Forest Service, 1998.
  3. "PRISM Climate Group, Oregon State University". PRISM Climate Group, Oregon State University. Retrieved October 14, 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.


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