Rock of Gibraltar may have originated from an escape of North African animals transported to Spain; it is also possible that the original Gibraltar macaques are a remnant of populations that are known to have spread throughout Southern Europe during the Pliocene, up to 5.5 million years ago. Some animals of the Rock have been reintroduced by the Alameda Wildlife Conservation Park who have three Barbary macaques. The Rock of Gibraltar, at the head of the Strait, is a prominent headland, which accumulates migrating birds during the passage periods. The vegetation on the Rock, unique in southern Iberia, provides a temporary home for
Gibraltar Rock State Natural Area Gibraltar Rock State Natural Area Gibraltar Rock State Natural Area is a natural area in southern Wisconsin, United States, which is in size, and is located along the Ice Age Trail. Located in Columbia County, Wisconsin, Gibraltar Rock State Natural Area is in size. The Wisconsin River Valley and Lake Wisconsin are located within view of the higher-elevation points in the natural area. The Gibraltar Rock State Natural Area is located along the Ice Age Trail, which is a thousand miles long. It is located from the intersection of Highway 113 and County Highway V in the town of West