Serrano Creek Trail Professional Review and Guide
"Limestone-Whiting Wilderness Park is a popular hiking and biking corridor that provides easy access into the wilderness of the Santa Ana Mountains. Borrego Canyon and Serrano Canyon are the two largest canyons that drain through the parklands. This hike climbs up Serrano Canyon through dense oak woodland and riparian habitat to Four Corners, located on a saddle where four roads merge. It is the watershed divide of the two canyons. En route to Four Corners, a path leads through a lush, atmospheric draw with gnarled oaks (back cover photo). The hike returns down the Dreaded Hill Road, a steep fire road that connects Four Corners with Serrano Canyon."
--Robert Stone, Day Hikes Around Orange County (Day Hike Books).
I mostly stuck to the route described here as a trail run during the final hour of the summer day. I much prefer this side of the park even though the Red Rocks and View Point trails are great. The live oaks along the stream are excellent on this side and you feel like you are in more of a canyon. It's not true wilderness, but I've seen coyotes and deer here on multiple occasions. A great quick hike/run and I recommend the late afternoon.
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