Arch Rock, Farallon Islands, California
Photo by Jay Wilbur
NABSQNO 10S-499650-4172840. Arch Rock is a sea natural arch located in the Farallon Islands, about 30 miles west of San Francisco, California. Once a popular tourist destination, and subsequently a dump for radioactive waste, the Farallon Islands are now preserved as a natural area for sea wildlife. Human visitation is not permitted without special permission from the US Fish and Wildlife Service. Arch Rock was listed in the Vreeland catalog as 21-115. It has a span of about 20 feet.