Segment: Islip Ridge Trail from Windy Gap to Mt. Islip
Stats: From Windy Gap to Mt. Islip: 1.0 miles, 662′ gain. From Mt. Islip to Windy Gap: 1.0 miles, 662′ loss. Round trip: 2.0 miles, 662′ gain and loss
Last Hiked: 3-8-2015
Hikes:
Islip Saddle to Mt. Islip: 6.7 miles, 1580′ gain and loss
Windy Gap is a junction connecting the Pacific Crest Trail, The Big Cienega Trail, and The Islip Ridge Trail. There are several signs and the correct path is clearly indicated.
The Islip Ridge Trail also connects with the Mt. Islip Trail that connect to Little Jimmy. Head in the direction leading up.

View at junction with the Islip Ridge Trail and the Mt. Islip Trail (note: mileage on sign indicates a distance about half a mile longer than it really is). Down on the left leads to Windy Gap. Up leads to Mt. Islip
Coming down from Mt. Islip, turn right at the junction with the Mt. Islip Trail to go to Windy Gap.

Another view of the junction. Straight leads down to Little Jimmy, down on the right leads to Windy Gap
The Islip Ridge Trail leads to a summit trail. Go Right at the sign.

Junction with the summit trail leading to Mt. Islip. Go Right for Mt. Islip and straight to continue along Islip Ridge toward Crystal Lake.
It is then about 0.1 miles to Mt. Islip
More photos here