Cobblestone Trail is a hiking and biking trail in Santa Rosa, California. It is within Annadel State Park. It is two miles long and begins at 329 feet altitude. Traveling the entire trail is 4.1 miles with a total elevation gain of 815 feet.
Cobblestone Trail Professional Review and Guide
"This hike forms a loop on the Cobblestone and Orchard Trails in the northwestern end of Annadel State Park. The Cobblestone Trail is named for the basalt cobblestones that were mined out of the area’s quarries. The stones were once used for paving roads. The old cobblestones can still be seen on the streets of San Francisco and Sacramento. The trail passes the Wymore Quarry, where a gravity-powered tram transported cobblestones to a railroad line at Channel Drive. The return route on the Orchard Trail runs through the remains of an old orchard. The loop travels through several diverse habitats and landscapes, including oak and manzanita savanna, open meadows, and a stream-fed draw. En route, the trail crosses a narrow ridge and leads to vistas of upper Sonoma Valley and the Santa Rosa Plain."
--Robert Stone, Day Hikes Around Sonoma County (Day Hike Books).
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