Estes Park PhotosColorado ColumbineRocky Mountain National ParkBighorn Sheep near Estes ParkGem Lake Trail in RMNPHiking near Moraine ParkMarmot at Rock Cut along Trail Ridge RoadFall in Rocky Mountain National ParkFall flowersThe Big Thompson River near Eagle Cliff HouseElk cow and newborn calf near Lake EstesCanada GoslingsPhotos by Gretchen Kastetter