Photo: Geology

The Big Rock located in Okotoks, Alberta is a wonder of geology and subject of First Nations legend.

An interesting highlight during a trip through the prairie lands of Alberta, Canada, is a visit to the Big Rock - a wonder of geology! The Big Rock is the largest known glacial erratic in the world and is part of the Foothills Erratics Train which stretch from Jasper National Park to Montana. Also known as the Okotoks Erratic, it is thought that the Big Rock was carried by ice, millions of years ago from the area now known as the Jasper National Park, and deposited the boulders as the glacial ice melted.