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.
Dunes Hotel and Casino. The Dunes Hotel and Oasis Casino in 1983, seen from Flamingo Road. The Dunes Hotel was a hotel and casino on the Las Vegas Strip in Paradise, Nevada, that operated from May 23, 1955 to January 26, 1993. Designed by architect Maxwell Starkman, it was the tenth resort to open on the Strip. Bellagio now stands on the former grounds.