when did channel islands became a national park
Channel Islands National Park Channel Islands National Park is home to a wide variety of significant natural and cultural resources. It was designated a U.S. National Monument on April 26, 1938, and a National Biosphere Reserve in 1976. It was promoted to a National Park on March 5, 1980.[5][6] Channel Islands National Marine Sanctuary encompasses the waters six nautical miles around Channel Islands National Park.