Sacred Sulphur Spring Cave

The Cave and Basin National Historic Site of Canada is located in the town of Banff, Alberta, within the Canadian Rocky Mountains, at the site of natural therma...
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The Cave and Basin National Historic Site of Canada is located in the town of Banff, Alberta, within the Canadian Rocky Mountains, at the site of natural thermal mineral springs around which Canada's first national park, Banff National Park, was established. The Cave and Basin is the lowest component of nine sulphurous hot springs clustered in three groups on the northeast flank of Sulphur Mountain. All are located along the Sulphur Mountain Thrust Fault below Devonian limestones. The water is heated geothermally from an estimated depth of three kilometres. The Cave and Basin is the only underground cavern large enough to comfortably accommodate groups of people. First Nations have held the mineral waters sacred for thousands of years.
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