The Betty Ford Alpine Garden

The Betty Ford Alpine Gardens are the world's highest botanical garden, located at 183 Gore Creek Drive, Vail, Colorado, USA, at an 8,200 feet altitude in the Rocky Mountains. The Gardens are open to the public daily from Memorial Day to Labor Day.

The Gardens were founded by Vail and Denver horticulturists in 1985, with subsequent planting of the Alpine Display Garden (1987), Mountain Perennial Garden (1989), Mountain Meditation Garden (1991), and the Alpine Rock Garden (1999) with its stunning 120-foot waterfall. Other gardens include the Children's Garden and Schoolhouse Garden. Together these gardens contain about 2,000 varieties of plants, including over 500 different varieties of wildflowers and alpine plants.

from wikipedia.org
images from flickr users: Jean., Lou Springer