Elevation: 7,421 ft
This peak is not in the book. Updated May 2018
Jack Benchmark is located at the northern end of the main Owyhee Mountains Crest WNW of Slacks Mountain. It is a big mountain with nearly 900 feet of prominence. It is a remote summit and is the 12th-highest Owyhee Mountains summit.The peak’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. USGS De Lamar
This peak can be accessed from the northeast via Succor Creek [(A)(1) on Page 346]. The better access is from the south via the Northern Owyhee Crest Road. Use this link to read about this access: Reynolds Area Access Routes.
Routes, Class 2
This peak will be Class 2 from either Succor Creek or the south. Use the link below to Brett Sergenian’s trip report to read about climbing the peak from Succor Creek. To climb the peak from the south, drive as far as you dare on the Northern Owyhee Crest Road and then pick a route.
Brett Sergenian is the only person I know who has visited the peak from Succor Creek. His trip report is linked below. Also see the Reynolds Area Access Routes page. There are many lines that lead to the summit. Succor Creek can be difficult to cross during high water.