Protected areas in the watershed include Colorado's Mesa Verde National Park and Canyons of the Ancients National Monument; the Chaco Culture National Historical Park in New Mexico, Canyon de Chelly National Monument in Arizona and Bears Ears National Monument in Utah. These parks are all known for their archaeological sites and ancient Native American dwellings. The San Juan National Forest encompasses more than 1.8 million acres (7300 km2) of alpine peaks, pine forests and desert mesas in the San Juan Mountains; the San Juan watershed includes parts of the South San Juan and Weminuche Wildernesses, the latter being the largest federally designated wilderness in Colorado. Other notable features in the watershed include Shiprock, a nearly high monadnock formation sacred to the Navajo people, and Monument Valley, whose rugged scenery has appeared in many Western films and other media.