At dusk a huge herd of elk comes out of the mountains and crosses the road near Mammoth Hot Springs (in the background) in Yellowstone National Park. This picture shows only a small portion of herd.
Wraith Falls, a 100 ft cascade of the Lupine Creek over a flat rock is just a short walk - about 1/2 mile - from the Grand Loop Road between Mammoth Hot Springs and Tower-Roosevelt Junction.
