| Ryan Peak | |
| Photo Alt: | Ryan Peak viewed from below Castle Peak, Idaho |
| Elevation Ft: | 11714 |
| Elevation Ref: | [1] |
| Prominence Ft: | 3194 |
| Location: | Custer County, Idaho, U.S. |
| Range: | Boulder Mountains |
| Map: | USA Idaho |
| Map Width: | 240 |
| Coordinates: | 43.9024°N -114.4096°W |
| Topo: | USGS Ryan Peak |
| Easiest Route: | Simple Scramble, |
Ryan Peak, at 11714feet above sea level is the highest peak in the Boulder Mountains of Idaho. Located in Custer County, Ryan Peak is about 0.5miles 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 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 0.75miles 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 1miles off trail hike from the ridge.[2]