Two Quarry Trail is a hiking, biking, and horse trail in Sonoma County, California. It is within Annadel State Park. It is 1.9 miles long and begins at 677 feet altitude. Traveling the entire trail is 3.9 miles with a total elevation gain of 1,122 feet.
Two Quarry Trail Professional Reviews and Guides
"Ledson Marsh sits in a large 1,100-foot-high circular depression on the quieter, southeast end of the park. The 30-acre marsh was built in the 1930s as a reservoir to water eucalyptus trees. It is now a mosaic of waterways, overgrown with cattails, tules, and native grasses. It is a popular bird observation site with more than 100 species of birds that are known to inhabit the area. The Two Quarry Trail, named for two basalt quarry sites along the trail, leads into the eastern portion of the park to Ledson Marsh. The hike begins on the Warren Richardson Trail at the east end of Channel Drive and joins with the Two Quarry Trail. For a one-way shuttle hike to Ledson Marsh, see Hike 84."
--Robert Stone, Day Hikes Around Sonoma County (Day Hike Books).
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