united states america fall autumn hollow hollows canyons south southern southeast mountains appalachians tourist attraction deep valley valleys parks distance time sunny clear skies vast durable overlooks vista vistas landscape landscapes scenic larry ulrich view of scott creek from black rock overlook mountain state park rabun county georgia scenics spring attractions dramatic clouds cloudland canyon appalachian tree trees sunrise sunrises lakes southeastern travel destination destinations reservoir reservoirs serene serenity dawn impounded water waters over prior bay lake barkley land between the kentucky swampland buttress buttresses cypresses knees knee swamp swamps swamplands mysterious roots gloomy evolution eternal wetland wetlands habitat ancient bald cypress chicot louisiana forest forests soft second growth vacation native northeastern boggy blue swampy pond lillies lily plants flora plant nassawango worchester maryland