Castle Mountain is a ski resort located in the Westcastle Valley of southwest Alberta, Canada in the Rocky Mountains. It is approximately 270 kilometers (168 miles) from Calgary and the Calgary International Airport; 140 kilometers (87 miles) from Lethbridge; and 35 kilometers (22 miles) west of Pincher Creek. The resort is renound for long steep runs and an average 29 feet of snowfall yearly. Castle Mountain Resort was opened in 1965. It was the site of the 1975 Canada Winter Games.