Complex sentence: 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.
Split into simpler sentences: Cheyenne Mountain Zoo is America's only mountainside zoo. It is located southwest of downtown Colorado Springs, Colorado, on Cheyenne Mountain in the United States and has an elevation of 6,800 feet (2,100 m) above sea level.