Find Nearby Peaks

This peak is not in the book. Elevation and prominence figures are based on recent LiDAR measurements. Published October 2025

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Peak 5664 separates the North Fork drainage from the Spring Creek drainage in the foothills of the Boise Mountains. It sits west-southwest of Lava Mountain and can most easily be reached from a spur road that comes off the FS road to the Lower Lava Mountain trailhead. USGS Prairie

Access

From the junction of [signed] West Long Gulch Road/FSR-213 and Prairie Road on the west side of Prairie, reset your odometer here. Drive 2.4 miles west on West Long Gulch Road to a signed junction with West Blacks Creek Road/FSR-189. Head right/north on West Long Gulch Road for 3.8 miles to a signed junction with Lava Mountain Trailhead Road/FSR-222. Drive 0.8 miles up FSR-222 (a badly rutted, narrow 2-track) to an unsigned junction at a gated road closure gate. Park at this gate [5,267 feet; 43°33’46.5”N, 115°35’56.8”W].

East Ridge, Class 2

The Climb

From the gated road closure, hike north up an old 2-track road(formerly FSR-222) as it weaves its way to a saddle on the east side of Peak 5664. Leave the 2-track here and bushwhack west up a rounded ridge of scrub and scattered pines. Stay left/south of the thicker brush. Upon reaching the false summit hump, continue west-southwest (dropping 20 vertical feet to a minor saddle) to climb atop the high point of Peak 5664. There was no cairn on the open summit so I built one.