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Los Angeles County: A Day Hiker's Guide
by John McKinney (The Trailmaster)
Trail connoisseurs appreciate the look—and feel—of hand-built Islip Ridge Trail. The moderate grade, well-engineered switchbacks, the rock work and the way the path gently crosses the land are due to the skill and hard work of many dedicated volunteers, particularly the San Gabriel Mountains Trail Builders. This trail to Mt. Islip climbs the forested shoulder of the mountain, and intersects a summit trail which leads to the peak.
The trail from the Crystal Lake parking lot up to the first 2.25 miles has been cleared and re-opened with most of the safety hazards removed.
I cannot rate the trail, because I couldn't get to it. This trail guide says to drive to the Crystal Lake Recreation Area from Azusa along Hwy 39, but the road is closed about half way in. It apparently has been closed for several years due to fire damage. You may be able to get current information from www.crystallake.name . Strangely, even the Forest Service web page http://www.fs.fed.us/r5/angeles/recreation/hike-crystal2islip.shtml does not note the fact that the road is closed, although their road conditions page does: http://www.fs.fed.us/r5/angeles/conditions/conditions-road.shtml .
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