Favorite trail in the Santa Ana's. There is a great place to stop for a bite/recharge just under halfway to Los Pinos Peak. Look for large rock outcrop (Large angular bloulders of light grey metamorphosed limestone... fairly rotten rock so I wouldn't try to get too crazy climbing the face of it) to left of trail, it is obscured by some bushes but if you crawl up on on the rocks there is an excellent view of Santiago Peak and upper Trabuco Canyon/ Holy Jim Canyon. Watch for rattlesnakes... I've seen a few on the ridge.
You can also descend to Yeager Mesa from this trail but the trail down is obscured and you have to be looking for it... not even mentioning poison oak and other things that have overgrown the little used trail.
This is a barely used pretty unknown trail. You really feel like you are in the wilderness on this one. The trail is very steep at places. Hiking poles are recommended.