The night sky over the Grand Teton National Park in Wyoming, USA. The bright summer Milky Way appears on the left from Scorpius and Sagittarius to Aquila (top), over the light of the nearby town Jackson Hole (towards south). In the middle right are the Big Dipper and Little Dipper (prominent figures of Ursa Major and Ursa Minor) towards the north. The green bands are airglow; natural emission of the Earth upper atmosphere. On the far right the autumn Milky Way appears from Perseus or Cassiopeia. the pink-red glow on the lower right is a faint glow of aurora or the Northern lights. The Teton Range is a part of the Rocky Mountains. The Grand Teton, the tallest mountain in the range, is 13,775 feet (4,199 m).