Elevation: 5,915 ft
This peak is not in the book. Published November 2019
Rattlesnake Peak is a handsome hill that sits just south of the Hawkins Reservoir. While most of the peak is in the Caribou National Forest, there is private land surrounding sections of it, so be careful. Rattlesnake Peak is the northernmost ranked summit on the LONG North Ridge of Elkhorn Mountain. It is a fun, steep scramble up the East Face from South Hawkins Road/FSR-039. USGS Wakley Peak
East Face, Class 3
Date of Climb: May 17, 2019
From the Arimo/Robin Exit on I-15 (Exit 40), drive W on Arimo Road past the hamlet of Robin, ID. At 8.4 miles (about a mile past Garden Creek Gap), go L onto Harrington Road. At 9.7 miles, you reach a “T” junction with Hawkins Road. Go L here and drive 4.2 miles to a junction with [signed] South Hawkins Road/FSR-039. Turn R/S onto FSR-039. At 0.5 mile, enter the Caribou National Forest. At 1.0 mile, park in a grassy pullout on the L/E side of the road. This pullout sits at the base of the East Face. The elevation here is 5,185 feet.
From the parking pullout, cross to the W side of FSR-039 and drop about 10 vertical feet to cross a small stream drainage. Climb directly W up the steep East Face. The terrain begins as desert scrub. It becomes a mix of steep, very loose talus for the final 200 vertical feet with some aspens and willows mixed in.You will be grabbing the branches of the bushes/aspens/willows to prevent a fall here.
The descent of the loose talus is particularly treacherous. This is definitely Class 3 terrain. The Northeast Ridge is a gentler, safer route than the East Face. The summit of Rattlesnake Peak is a gentle scrub hump. There was no summit cairn on top. Not much loose rock here with which to build a cairn. From the road, this climb requires about 750 vertical feet of elevation gain.