The Centennials form both the Continental Divide and the Idaho/Montana border for 62 miles, from Monida Pass at I-15 to Red Rock Pass east of Yellowstone National Park. The range 12 miles in wide in places. In the west, the range begins as series of high rolling ridges that gradually gain in elevation as one moves to the east. On … Continue reading

Red Rock Mountain

This peak is not in the book.  Red Rock Mountain is located 1.2 miles north northwest of Mount Jefferson and stands directly on the Continental Divide. Like Jefferson, due to the swing of the divide, Montana is to the south of the summit and Idaho to the north. Climb the peak by following the divide for 1.5 miles from the … Continue reading

Mount Jefferson

Climbing information for this peak is found on page 333. The 19th most prominent Idaho summit has high access and offers a nice ridge walk to it’s summit. Beware that there are Grizzly Bears in this area. Check with the USFS when planning your climb. … Continue reading