Chlorofluorocarbons or CFCs are a chemical compound containing carbon, chlorine, and fluorine. Throughout the 20th century, CFCs were mass produced for their popularity in refrigeration and spray cans. In the 1970s, evidence began to show the harmful effects of CFCs on Earth.
Originally created as Great Sand Dunes National Monument on March 17, 1932, Great Sand Dunes National Park and Preserve was established by an act of the United States Congress on September 13, 2004.
The Dunes opened as a low rise resort in 1955. When the North Tower was added in 1964, it was one of the finest and largest hotels on the strip. The South Tower was added in 1979. The resort boasted an 18 hole golf course, a rooftop health spa and a 90 foot-long pool.