Whoever first coined Alberta as “Big Sky Country” must have visited the Crowsnest Pass, where rolling prairies meet the southern corridor of the majestic Rocky Mountains, revealing some of Alberta's prettiest countryside. Including the communities of Blairmore, Bellevue and Coleman, the Crowsnest Pass is a retreat for recreationalists in search for a quintessential mountain experience without the big crowds. Another unmistakable feature of the Crowsnest Pass landscape reveals a haunting past. The Frank Slide of 1903 buried a portion of the mining town under 82 million tonnes (90 million tons) of limestone. Another mining disaster in Hillcrest is credited as one of Alberta's worst. Area mines have all since closed, but the memory of their disasters are preserved at the the Frank Slide Interpretive Centre, the area's largest attraction.