The park is part of the East Bay Regional Parks District (EBRPD), covers 928 acres (3.76 km ), and lies east of Oakland, partly in Alameda County and partly in Contra Costa County. What hotels are near Mazzariello Labyrinth: Sibley Volcanic Regional Preserve? Continue 0.8 miles to Grizzly Peak Boulevard. Bodies of Water, Scenic Drives, Parks. > Park Map [PDF] Oakland, CA In addition, quarrying in the north half of the preserve has revealed cross sections of the bedrock geology, providing an unsurpassed outdoor laboratory for studying volcanism in the Central Coast Ranges. [1], The park was one of the first three parks established by the East Bay Regional Parks District (EBRPD) in 1936. The unstaffed visitor center provides a thorough geological history of the park through display panels and specimens. The 31-mile East Bay Skyline National Recreation Trail, part of the Bay Area Ridge Trail system, traverses the preserve along the ridgeline between Wildcat Canyon a… East Bay residents have a volcano in their backyard at Sibley Volcanic Regional Preserve. During the past 10 million years, massive tectonic forces on the Hayward and Moraga earthquake faults uplifted the Berkeley hills, folding bedrock formations and tilting the Round Top volcano complex on its side. Most are restricted to hiking and horseback use and only a few are available for multi-purpose use. This volcano, Round Top, dates to about 10 million years ago and is the source of all the volcanic rock in the park. The most prominent feature in Sibley Park is the Round Top volcano which rises 1,763 feet, and is made up of lava and volcanic debris left over from a 10-million-year-old volcano. 7/17 To Reach Sibley Volcanic Regional Preserve: From Highway 24 just east of the Caldecott Tunnel, take the Fish Ranch Road exit and go north, uphill, … Most trails are hiking and equestrian only. Even if it’s a 10-million-year-old one. Please call AC Transit 511 (TDD (hearing impaired line)/TTY: 1-800-448-9790) or visit www.transit.511.org to confirm transit information. 1.5K likes. The unstaffed visitor center has specimens and panels documenting the geological history. Click the map image below to see an enlarged version. Despite being located on the Ring of Fire, it is easy to forget California’s volcanic past. Last week a group of friends and I ventured to Sibley Volcanic Regional Preserve. Phone Number A large portion of the park is off-leash for dogs as long as they respond to voice commands. The closest bus line, AC Transit #305, runs only on Tuesdays and Thursdays, from mid-morning to mid-afternoon. Round Top Road is paved to the top of Round Top. The Sibley Volcanic Regional Preserve is a wonderful, dog-friendly park with beautiful views of the bay. It is about 10 million years old and is the source of all the volcanic rock in the park. Oakland, CA What hotels are near Mazzariello Labyrinth: Sibley Volcanic Regional Preserve? The unstaffed visitor center at the Skyline Boulevard staging area has displays illustrating the preserve's geology. The park and gate hours are: There is no parking fee and no dog fee. Originally called Round Top Park, Sibley shares with Temescal and Tilden the distinction of being one of the East Bay Regional Park District's original parks. Several trails provide access throughout the preserve. 145 reviews of Robert Sibley Volcanic Regional Preserve "A great park, fairly small with easy trails. The labyrinth she created is known as The Sibley Labyrinth, or "Mazzariello's labyrinth", ebparks.org: Robert Sibley Volcanic Regional Preserve, USGS.gov: "Upper Cretaceous and Lower Tertiary Rocks Berkeley and San Leandro Hills, California", Oakland Geology Blog: "Grizzly Peak and Moraga basalt", Geology.about.com: "California Transect - Stop 30, Orinda Formation and Moraga Volcanics", Lawrence Berkeley Lab.gov: "Berkeley Lab Geologist Studies the Ground Beneath His Feet", "Mazzariello's Maze." Directions. Sibley Volcanic Regional Preserve is home to the Round Top volcano. Friends of the Labyrinth. Oakland, CA 94611 Reserve a campsite online or learn more about lodging and activities at Sibley Volcanic Regional Preserve. A self-guided brochure is available at the staging area highlighting the preserve's geological features. Park/Gate Hours > Trail Map Geologists refer to this local volcanism as the Moraga Volcanics. 108 Reviews #13 of 82 things to do in Oakland. Quarry Road, beginning at Old Tunnel Road, is also paved. Transit & Trails :  Sibley Volcanic Regional Preserve  (transit, biking, and walking directions). Round Top, one of the area's highest peaks, is made up of lava and volcanic debris left over from a 10-million-year-old volcano. Parking: No fee Several trails provide access throughout the preserve. Oakland, California 94611 Visit Website Local Phone: (888) 327-2757. Fees Highlights. It is a mostly level, 0.9-mile walk that passes the Huckleberry Preserve staging area. Continue 0.8 miles to Grizzly Peak Blvd. It also features depictions of the region's geology. From Highway 24 take the Fish Ranch Road immediately east of the Caldecott Tunnel. Round Top (elevation 1,761 feet [537 m]) is an extinct volcano in the Berkeley Hills. Located in the Oakland Hills just off Skyline Boulevard, Sibley was dedicated in 1936. [1], Round Top, an extinct volcano at Sibley Volcanic Regional Preserve. 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