Okotoks Erratic, Glacial erratic in Foothills County, Canada.
The Big Rock stands 9 meters tall, stretches 41 meters long, and measures 18 meters wide, making it visible across the prairie landscape.
During the last ice age, about 30,000 years ago, this 16,500-tonne quartzite boulder traveled from Jasper National Park through glacial movements.
The Blackfoot people named the formation Okatok, and their traditions explain the large split in the rock through stories of Napi, their supernatural figure.
Located along Highway 7 with dedicated parking facilities, the provincial historic resource offers visitors opportunities to examine glacial geology.
The quartzite composition displays light grey, pink, and purplish hues, while deep fractures from frost action segment the massive stone structure.
Location: Foothills County
Height: 9 m
Length: 41 m
Width: 18 m
GPS coordinates: 50.70590,-114.07600
Latest update: May 27, 2025 13:19
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