Red Rock Island, San Francisco Overview

Standing amid the San Francisco Bay, the Red Rock Island is a 5.8-acres unpopulated island. It is situated in the South of Richmond-San Rafael Bridge. It is the only island in San Francisco Bay that has private ownership. The borders of three counties - San Francisco, Contra Costa, and Marin coincide on the island.

As the name Red Rock Island implies, this island features Red Rock, which is oxidized manganese and the Franciscan Schist. Over the years, many people made plans to develop this piece of land, offering splendid scenic views, but it is still unpopulated.

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