Horseshoe Canyon Formation, Geological formation in Drumheller, Alberta, Canada
The Horseshoe Canyon Formation extends over 250 meters in depth, containing layers of mudstone, sandstone, and coal seams near the Red Deer River Valley.
The formation dates back to the Late Cretaceous period, spanning from the Campanian to early Maastrichtian stages approximately 70 million years ago.
The Atlas Coal Mine in the formation operated from 1911 to 1979, now preserved as a National Historic Site representing Alberta's mining heritage.
Researchers and visitors can access the formation through designated points along nearby highways, with several observation areas providing geological study opportunities.
The formation contains an extensive collection of dinosaur fossils, including specimens of Albertavenator, Albertosaurus, and numerous other Late Cretaceous species.
Location: Alberta
GPS coordinates: 51.42330,-112.88800
Latest update: May 27, 2025 11:30
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