Elevation: 7,421 ft
This peak is not in the book. Updated August 2021
Jack Benchmark is located at the northern end of the main Owyhee Mountains Crest WNW of Slacks Mountain. It is the 12th-highest Owyhee Mountains summit. It has nearly 900 feet of prominence and a mile long summit ridge. The highest point is at the summit ridge’ s south end. Jack BM is also a remote summit that is difficult to reach. It’s closest neighbor is Rooster Comb Peak, which is located rough 2.0 miles northeast of Jack Benchmark. These two mountains and Whiskey Mountain sit in an area of mixed BLM, State of Idaho and private lands. Some one stole the Jack BM. There was a register in 2021. USGS De Lamar
This peak can be accessed from the northeast via the Whiskey Mountain Road and the Upper Succor Creek Road [(A)(1) on Page 346] or from the south the Northern Owyhee Crest Road and the Upper Succor Creek Road. Use this link for access details and maps: Reynolds Area Access Routes. A rough 4WD road climbs out of the headwaters of Succor Creek from the Upper Succor Creek Road to the saddle on the peak’s south ridge. Another, even rougher road climbs from the saddle to the summit. Be warned vehicle access requires a 4WD and lots of time.
Succor Creek Southeast Slopes, Class 2
The upper reaches of Succor Creek are reached via the Whiskey Mountain Road which ends at Succor Creek. From the road’s end the slopes to the summit are a mixture of forest and meadow. You can continue to drive or hike up the Upper Succor Creek Road until you reach the 4WD road that leads to the saddle on the peak’s south ridge or, if on foot, leave the road at almost any point and hike directly to the summit.
South Ridge, Class 1
Follow the rugged 4WD roads to the summit has shown on the maps found on the Reynolds Area Access page.