the black canyon of the gunnison national forest

america angle area away black canyon clear cliff cloud color colorado county deep destinations dramatic environment eroded erosion extreme face famous forest formation geography geology gorge green gunnison high hill horizon horizontal land landmark landscape looking majestic montrose monument mountain mountains national natural nature north object outdoors outside overlook park peak physical range ravine ridge rim river rock rocky rough rural scene scenery scenic scenics sky solitude southwest state steep strata terrain travel united usa valley view viewpoint water wilderness