Elevation: 5,896 ft
This peak is not in the book.
This somewhat isolated Boise Mountain summit is a great destination for hikers in the spring. This mountain sits east of the Irish Creek boat ramp on Arrowrock Reservoir. It is the highest point on the western end of the land that separates the Middle and South Forks of the Boise River. A road, gated closed, leads to the summit. The peak was burned over at some point in the past. The forest is recovering nicely on the northern slopes. The peak is approachable from the east via the Slide Canyon Road [(C)(1)] that connects the Middle Fork Boise River Road [(C)(1)] and the Upper Blacks Creek/South Fork Boise River Road [(G)(1) and (1.1)].
Follow the twisting, rough Middle Fork Road from ID-21 past Lucky Peak and Arrowrock reservoirs. Eight miles past the Cottonwood Road and turn onto the Slide Gulch Road. You will cross a pass in 3.5 miles. Descend 1.7 miles from the pass and turn west (right) on a dirt road (unsigned) and follow this road for 1.0 till you reach the gate closing the road that leads to the summit.
I recommend climbing the peak via the road. The peak’s slopes are mostly open for crosscountry travel but the road offers an easy way, albeit, long walk to the summit. My GPS watch recorded a 9.3 round trip journey. A notation in the summit register reported that another GPS calculated the route was 5.5 miles one way. I doubt either were accurate. If you want to try something different, Zach Vickery climbed the peak from the west after kayaking across Arrowrock Reservoir.
See John Platt’s trip report for additional access info.