8 Photos - Oct 12, 2011
Photo: The border fence between the U.S. and Mexico, straight through the Sonora.Photo: The sky islands from below.Photo: Young black bear swimming in a Huachuca mountains springhole.Photo: Cicada moult.Photo: Grey fox tracks.Photo: Morning glory (a non-native) in old San Pedro riverbed.Photo: The San Pedro River, one of America's last undammed rivers.Photo: Riparian zone around the San Pedro.