Kakwa
Falls
Kakwa
Falls is the main attraction of the Kakwa Wildland Provincial Park, which
is in the Foothills, 150 kilometres southwest of Grande Prairie. Besides
being a place of beauty, it also displays an outcrop of the Cadomin Formation,
one of the most prominent ridge and ledge-forming rock deposits in the
area.
The
Kakwa River, fed by Lake Kakwa, is a tributary of the Smoky River. The
falls are formed as the river flows over a large anticline, or folded
arch of bedrock. Looking downstream from the lookout at the falls, you
can see that the prominent Cadomin Formation forming the falls also forms
the lip of the canyon. This demonstrates that the falls has moved slowly
upstream as the underlying rock was eroded away.
The
distinctive feature of these falls is the degree of undercutting that
has taken place. There is a large cave behind the falls formed by water
splashing and spraying against the back wall of the falls and eroding
it. The boundary, or contact, between the upper resistant layer and lower
weak layer is what forms the ceiling of the cave.
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