Yellowstone National ParkYellowstone river near tower falls.mouse near tower falls.Tower falls.Black and white image of Yellowstone National ParkFirehole FallsFirehole Fallsfall color near fairy fallsImperial geyser.Kepplar Cascadegrass and dry soilKeppler Cascadelong exposure of geyser.early morning geyser.sunrise over pondBlack and white image of lower falls.Lower falls