Pembina Escarpment

Pembina Escarpment

The Manitoba Escarpment (known in the United States as the Pembina Escarpment) is a scarp that marks the boundary of glacial Lake Agassiz.[1] It occurs in South Dakota, North Dakota, and Manitoba.

Originally formed by the undercutting of Cretaceous sandstones by the ancestral Red River, the escarpment was later steepened bysections of New England. Streams flowing off the escarpment have high gradients and a cobble substrate.[2]

Native plants to the escarpment include burr oak, beaked hazel, high bush cranberry, serviceberry, and red osier dogwood.[2]

The scarp forms the eastern edge of Riding Mountain National Park and Duck Mountain Provincial Park in Manitoba.[1] Turtle Mountain Provincial Park and the Porcupine Hills are also part of the southern portion of the Manitoba Escarpment.

The escarpment in Riding Mountain National Park, with surrounding topography and vegetation.

Notes

Coordinates: 50°37′02″N 99°31′35″W / 50.617232°N 99.52652°W / 50.617232; -99.52652

External links


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