Grand Teton National Park is a United States National Park in northwestern Wyoming. Approximately 310,000 acres (130,000 ha) in size, the park includes the major peaks of the 40-mile-long (64 km) Teton Range as well as most of the northern sections of the valley known as Jackson Hole.
Grand Teton National Park is an almost pristine ecosystem and the same species of flora and fauna that have existed since prehistoric times can still be found there. More than 1000 species of vascular plants, dozens of species of mammals, 300 species of birds
