Strata of the St. Mary River Formation at the St. Mary Reservoir spillway.
Contact (red arrow) between the underlying marine shales of the Bearpaw Formation and the coastal Horseshoe Canyon Formation.
Bearpaw shale being excavated to recover ammonites for ammolite production.
A specimen of Placenticeras ammolite from the Bearpaw Formation.
A topographic map of Alberta, showing cities, towns, municipal district (county) and rural municipality borders, and natural features
Moraine Lake at Banff National Park. The Alberta Mountain forests makes up the southwestern boundary of Alberta.
Köppen climate types in Alberta
Southeastern Alberta features a semi-arid steppe climate.
The wild rose is the provincial flower of Alberta.
A bighorn sheep in Kananaskis Country. The bighorn sheep is the provincial mammal of Alberta.
Specimens at the Royal Tyrrell Museum of Palaeontology, located in the Horseshoe Canyon Formation at Dinosaur Provincial Park. Some of the specimens, from left to right, are Hypacrosaurus, Edmontosaurus, Lambeosaurus, Gorgosaurus (both in the background), Tyrannosaurus, and Triceratops.
Blackfoot Confederacy warriors in Macleod in 1907
Fort Chipewyan, a trading post and regional headquarters for the Hudson's Bay Company in 1820
Downtown Calgary was one of several areas afflicted during the 2013 Alberta floods.
Population density of Alberta
Petroleum resources in Alberta
Cows in Rocky View. Nearly one-half of Canadian beef is produced in Alberta.
A canola field in Alberta
The Three Sisters at Bow Valley Provincial Park in Canmore
Bronco riding at the Calgary Stampede. The event is one of the world's largest rodeos
Distribution of Alberta's 6 specialized municipalities (red) and 74 rural municipalities, which include municipal districts (often named as counties) (orange), improvement districts (dark green) and special areas (light green) (2020)
The Alberta Legislative Building serves as the meeting place for the Legislative Assembly of Alberta.
Royal Canadian Mounted Police officers in St. Albert. The RCMP provides municipal policing throughout most of Alberta.
The University of Alberta in 2005. The institution is the oldest, and largest university in Alberta.
Foothills Medical Centre in Calgary is the largest hospital in Alberta.
Calgary International Airport, the province's largest airport by passenger traffic.
A Via Rail passenger train passing by freight trains in the background, at Jasper station
Highway 1 (the Trans-Canada Highway) at Alberta Highway 22 (Cowboy Trail).

The St. Mary River Formation is a geologic formation of Late Cretaceous (71.9-67 Ma ) age of the Western Canada Sedimentary Basin in southwestern Alberta and northwesternmost Montana.

- St. Mary River Formation

It outcrops in the U.S. state of Montana, as well as the Canadian provinces of Alberta and Saskatchewan, and was named for the Bear Paw Mountains in Montana.

- Bearpaw Formation

The St. Mary River Formation conformably overlies the Blood Reserve Sandstone, or the Bearpaw Formation where the Blood Reserve Sandstone is absent, and it is conformably overlain by the Willow Creek Formation.

- St. Mary River Formation

It is overlain by the Horseshoe Canyon Formation in central Alberta; by the Blood Reserve Formation and the St. Mary River Formation in southern Alberta; by the Eastend Formation in southern Saskatchewan; and by the Fox Hills Formation in Montana.

- Bearpaw Formation

Additional geologic formations that have produced only a few fossils are the Belly River Group and St. Mary River Formations of the southwest and the northwestern Wapiti Formation, which contains two Pachyrhinosaurus bone beds.

- Alberta

The Bearpaw Formation represents strata deposited during a marine transgression.

- Alberta
Strata of the St. Mary River Formation at the St. Mary Reservoir spillway.

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