San Nicolás Island is a small, uninhabited island located off the coast of California, part of the Channel Islands National Park. It covers an area of about 14 square miles and is known for its rugged terrain, diverse wildlife, and unique ecosystems. The island is home to various species, including the San Nicolás Island fox and several seabird colonies. The island has a rich history, having been inhabited by the Channel Islanders for thousands of years. It was later used for military purposes and has remnants of historic structures from that time. Today, San Nicolás Island is primarily a site for scientific research and conservation efforts.