Aerial view of mountain range in Yellowstone National Park
DailyPhoto040311North AmericaUSAWyomingYellowstone National ParkUS National Park Servicenational parkUNESCOWorld Heritage SiteYellowstone CalderaYellowstone LakeOld Faithful GeyserSouth Central Rockies forestGreater Yellowstone Ecosystemnaturelandmarktourist attractionMammoth Hot Springs