The trail from Newcomb to Red Box is about 8 miles total. We checked out the section after Newcomb pass, and found the trail difficult but possible to follow about 0.5 miles to Rincon-Red Box road. After that, we turned back and are not sure about the 2 mile stretch from the road to West Fork Camp through Devore Camp.
I think there are three options to get from Newcomb to Red Box:
- Safest: There’s another trail in better condition that leaves east from Newcomb pass and then meets the fire road. Turn left, and you can follow that all the way to Red Box. The detour adds about a mile overall to the run.
- You can tackle the rough trail down to the fire road, then take that to West Fork camp before getting back on the single-track Gabrielino trail. The trail after West Fork camp is overgrown in spots but not too bad.
- Single track all the way. Good luck to you, bring GPS!
It would probably be good to pick an option before-hand and then tell a volunteer what you plan to do, just in case.