P-1 start at a left-leaning dihedral which gains a ledge. Negotiate some brush then head up a right-leaning layback, over a small roof (pretty stiff for .7) and to a tree belay stance, flake for anchor.
P-2 Climb up and right to an arete with nice jams and gear to a wild roof move (lieback) and another 20 or so feet to a belay.
P-3 Up and right to a stem/face. Crack comes and go and with it a little run-out. A welcome fixed piton and more moves leads to a bolted belay out right.
P-4 Follow fins up and right to a small bulge. (for some reason, someone put a bolt right where there's some good gear. Nice 3/4 placement) Follow up and right (more bolts?) to a belay at the bottom of a large flake. Fourth class leads to the summit.
Location
Getting down is fine, but do it in the light. Your goal, once getting down sandy ledges and brushy slopes is to aim for a notch to the South. (Think Mountaineers route on Whitney but in reverse) Follow this along the base of the El Segundo Butt and back to your packs.