Under the icefield and inside the mountain
Go deep below the Columbia Icefield in Banff National Park to “the most inaccessible place in Canada” with the 2020 Castleguard Cave Expedition
Typical crawling passage on the way to Boon s sump. All diving equipment had to be moved though approximately one kilometre of cave passage is like this, a trip that took 5-6 hours. (Photo: Jason Lavigne)
April 15, 2021
Castleguard. For a caver, the name invokes imagination and emotion. As Canada’s longest cave, it has enchanted expedition cavers from around the world who have contributed to its exploration over the last 50 years. A few unexplored leads still beckon, and armed with clear scientific and exploration objectives, a research permit from Parks Canada grants access for experienced teams.
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