Gabrieleno Trail from Red Box through the Arroyo Seco Professional Review and Guide
"One of the best, most scenic singletracks in all of Southern California, the section of the Gabrieleno Trail from Red Box to Switzer's and through the Arroyo Seco is a very popular shuttle ride. It has a little bit of everything: smooth sections of trail, boulder fields, switchbacks, stream crossings, exposure, technical climbing and technical descending. The scenery ranges from sycamore and oak-filled streamside habitat to waterfalls. And, oh yes, there's plenty of poison oak."