Devil’s Punchbowl, Russian Gulch State Park

Devil's Punchbowl is a sinkhole formed by a collapsed sea cave over 70 feet (21 m) deep and 100 feet (30 m) in diameter near the mouth of Russian Gulch Creek in Russian Gulch State Park, about 8 miles (13 km) south of Fort Bragg and 1.6 miles (2.6 km) north-northwest of Mendocino, California.