Cheyenne Mountain Zoo

Cheyenne Mountain Zoo is America's only mountainside zoo, located southwest of downtown Colorado Springs, Colorado on Cheyenne Mountain in the United States at an elevation of 6,800 feet (2,100 m) above sea level. The Zoo covers 140-acre (57 ha), of which 40 acres (16 ha) are in use. It is located west of the Broadmoor Hotel Resort along the slopes of Cheyenne Mountain's lower north end. The animal collection includes more than 750 animals, representing nearly 150 different species, with more than 30 endangered species.

• http://en.wikipedia.org/wiki/Cheyenne Mountain Zoo