The name Trinity Mountains refers to a rugged North/South ridge line that runs from Dog Mountain (just above Anderson Ranch Reservoir) to Sheep Mountain (just north of the Middle Fork Boise River). The name was used by miners but has not been officially adopted by the government. Trinity Mountain (9,451 feet) is the highest point on the ridge. Other notable … Continue reading
This peak is not in the book. Peak 9140 sits southeast of Trinity Mountain and Big Rainbow Lake. The peak has two summits of almost equal height. The East Summit is allegedly 5 feet higher than the West Summit according to the USGS topo map. But it’s hard to tell which summit is higher. Climb the peak from Trinity Mountain … Continue reading
This peak is not the book. Peak 9165 is the 3rd-highest summit in the Trinity Mountains Subrange. The peak can be climbed from almost any direction but, based on access considerations, I suggest the route which leaves the road that leads to the Trinity Mountain fire lookout at the 9,200-foot contour. From this point, you can traverse the ridge to … Continue reading
This peak is not in the book. Livingston Douglas added a new route for those wishing to climb the peak before the road melts out. Updated October 2025 House Mountain is located in an isolated position southeast of Prairie, Idaho. While not an exceedingly high summit, it towers over the South Fork Boise River’s deep canyon which is on its … Continue reading
This peak is not in the book. Peak 8554 is located roughly 1.5 miles due west of Trinity Mountain and 1.0 mile southwest of Peak 9037. USGS Trinity Mountain North Ridge, Class 2 Peak 8554 can easily be climbed from the Trinity Mountain Road [(E)(2.2) on Page 155] from numerous points. I climbed the peak via its Northeast Ridge. This … Continue reading
This peak is not in the book. Updated August 2021 This peak is just to the north of Trinity Mountain. It rises just over 300 feet from the connecting saddle. Lists of John uses the name “Fiddler’s Perch” but does not identify the origin of the name. USGS Trinity Mountain Access Featherville, Idaho Access. At the south end of Featherville, … Continue reading