HistoryDuring the last ice age, the four northern Channel Islands, including Santa Rosa Island, were conjoined into Santa Rosae, a single island that was only five miles (8 km) off the coast. In 1960, archaeologists discovered the remains of 13,000 year-old Arlington Springs Man, among the oldest human remains in the Americas, on the island. Pygmy mammoths (Mammuthus exilis) have also been excavated there. Santa Rosa Island was originally part of a Spanish land grant. The island was used as a sheep ranch during the mid-1800s by the More family. The United States Air Force maintained a radar base on the island during the Cold War. In the late 1970s Mobil Oil Corporation was granted exploration rights on the island. Both explosive and vibroseis exploration methods were used. Extensive surveys and geological maps were made at that time. In 1980, Santa Rosa Island was included within Channel Islands National Park. The island's owners since 1902, ranchers Vail & Vickers of Santa Barbara, were opposed to inclusion of the island in the park. Vail & Vickers used the island for cattle ranching and a private hunting reserve. Vail & Vickers successfully lobbied to have the legislation stipulate that purchase of their land would be the highest priority of the Channel Islands National Park. The Vail & Vickers voluntarily sold the island in 1986 for the appraised value of nearly $30 million. The initial agreement to allow continuation of the ranching and hunting operation for three months was extended under a series of special use permits issued by the National Park Service. A lawsuit by National Parks Conservation Association in 1996 resulted in a court-approved settlement agreement which included removal of all cattle from the island and phased reduction by Vail & Vickers of the non-native deer and elk by 2011. In 2006 U.S. Representative Duncan Hunter (R-CA) introduced a provision into the annual defense policy bill that would allow disabled veterans to continue hunting elk on the island past 2011, without the consent of Vail & Vickers or the National Park Service. The provision stayed in the bill and was signed into law by President George W. Bush. This legislation was repealed by the next Congress and approved by President George W. Bush. EcologyA variety of the Torrey Pine (Pinus torreyana var. insularis) grows on the island. The population of this endangered species is estimated at approximately 1000 trees. Hogan postulates that the P. torreyana was first brought to the island from the Central Coast mainland by Chumash peoples using their plank canoes.2 The Island Oak (Quercus tomentella) is native to the island. Flightless geese, giant mice and pygmy mammoths are extinct, while the island fox, spotted skunk, and munchkin dudleya (Dudleya gnoma) (one of the six endemic plant species on the island) still live there. The island is home to one of only three known populations of Hoffman's rockcress.3 Its surrounding waters serve as an invaluable nursery for the sea life that feeds larger marine mammals and seabirds. Images of Santa Rosa IslandExternal links
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