Sunset in Yellowstone, taken at Old Faithful GeyserOld Faithful Geyser at sunsetTower Falls, YellowstoneTower Falls, YellowstoneMale elk with harem relaxing in the salts at Mammoth Hot Springs, YellowstoneMale elk with harem relaxing in the salts at Mammoth Hot Springs, YellowstoneMammoth Hot Springs, YellowstoneMammoth Hot Springs, YellowstoneMammoth Hot Springs, YellowstoneMammoth Hot Springs, YellowstoneMammoth Hot Springs, YellowstoneMammoth Hot Springs, YellowstoneMammoth Hot Springs, YellowstoneMale elk with harem relaxing in the salts at Mammoth Hot Springs, YellowstoneView of the town of Mammoth Hot Springs, Yellowstone