Upper San Leandro Reservoir: King Canyon Loop Professional Guide
Detailed Trail Description from our Guidebook
"This loop, combining the Rocky Ridge and King Canyon Loop trails, explores two narrow canyons at the northern end of EBMUD’s Upper San Leandro Reservoir. Birders will enjoy the variety of habitats visible from this route, from open water to secluded forest, and those out for exercise will profit from many ups and downs. Parts of this route have steep ground, and parts are extremely muddy in wet weather. From the parking area, go through a cattle gate and sign the EBMUD register, then turn left and walk downhill on the Rocky Ridge Trail, a gravel path that crosses an open field of coyote brush and blackberry vines. (Another EBMUD route that starts here, the Redwood Trail, goes right and climbs to the East Ridge Trail in Redwood Regional Park.) The northernmost finger of Upper San Leandro Reservoir, which you will soon cross, is visible from here. After about 150 feet you reach a dirt road coming from the parking lot and joining on your left. Here you angle right on the road. When you reach the remains of an orchard, left, bordered by Monterey pines and eucalyptus, find a gravel turnout, also left. (This turnout is opposite a trail post marking the Riche Loop Trail.)"