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Glacial Erratic

Located 10 km (6.2 mi) west of Okotoks and southwest of Calgary, the Big Rock is the largest glacial erratic in the world. Left behind after the Ice Age, far from its original home in the Rocky Mountains, the enormous quartzite block weighs 16,500 tonnes, and was a major landmark and place of legend for travelling Blackfoot tribes. The Big Rock, after which a popular Calgary beer company is named, was Alberta's first natural feature to be determined as a provincial historic site in the 1970s.

 

Okotoks, AB

 

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Uploaded on November 9, 2009
Taken on September 19, 2009