Elevation: 7,515 ft
This peak is not in the book. Published June 2018
Thorn Creek Butte is located south of Idaho City. It has significant prominence and all of the nearby peaks and ridges are much lower in elevation. As a result, it has a massive 360 degree view. The peak can be accessed by roads from three directions. The best quality road by far is FS-304.
Access and Route, FS-304, Class 1
This road is accessed from ID-21 just east of Idaho City. The turn is signed for Thorn Creek Butte. Turn south and quickly cross a bridge over Mores Creek. After the bridge, the road then weaves through a flat area used by campers and reaches a junction. Stay left at the junction which is signed as 304. It is 14.3 miles to the summit from the highway according to my odometer. At 12.3 miles FS-304 becomes FS-203. Shortly after this number change the road reaches Bald CG which has a pit toilet and four camping spots. The road to this point is narrow but, with the exception of one rutted spot, passable for most vehicles if driven slowly and carefully. The road deteriorates after the CG and thus, traveling the remaining distance on foot is recommended. Otherwise, a 4WD is advised.
A sampling of the views from the summit.
USGS Arrowrock Reservoir NE