http://en.wikipedia.org/wiki/List_of_U.S._Wilderness_Areas 150 wilderness areas in California constitute a lot of land the 765 wilderness areas system hundreds of others 150 wilderness areas in California 150 wilderness areas in California 150 wilderness areas in California List of U.S. Wilderness Areas system hundreds of others 170,500 square miles of land 170,500 square miles of land Lista de Áreas salvajes de Estados Unidos List of U.S. Wilderness Areas 150 wilderness areas in California Wilderness Areas http://en.wikipedia.org/wiki/List_of_U.S._Wilderness_Areas wilderness areas http://en.wikipedia.org/wiki/List_of_U.S._Wilderness_Areas constitute a lot of land 150 wilderness areas in California 150 wilderness areas in California 150 wilderness areas in California Wilderness Areas http://en.wikipedia.org/wiki/List_of_U.S._Wilderness_Areas hundreds of others hundreds of others