Souris River Capture

At some point in time, headward erosion by a stream running through the Tiger Hills reached a point where the Souris River was captured and sent northward to the Assiniboine River.  The capture occurred at "the elbow" region, just east of highway 10.  Previous to that event the Souris River continued in the Pembina Valley. 


BlackDuck Settlement in South-Western Manitoba - jgraham masters thesis 2005.pdf

Bruce Low: Lithic Collection Locales: Prehistoric Quarries In Southwestern Manitoba 1994

General Southwest Manitoba

Below are some pdf files of research done on the area and southwest Manitoba in general.

Guidebook Mid-Western Friends of the Pleistocene May 17-18 1958 - MS-10.pdf

Surficial Geology of the Tiger Hills Region Manitoba John Elson.pdf

Brooks_A_Geomorphological.pdf "A Geomorphological Study of the Lower Souris River Valley, Manitoba, With Special Reference to the Diversion". This is a Master's Thesis by D. R. J. Brooks, 1968, University of Manitoba.
Hodgeson_A_Slope_Profile.pdf Analysis of Souris River slope.


General photos of southwest Manitoba: spring and summer 2016

Below are a few photos taken on 22 May 2016 showing some of the elbow region and the Souris/Pembina valley close-up.  On this particular day a local thunderstorm had just passed nearby and to the North.  One could hear both the storm's distant thunder and the Souris river running over the rocks of the river bed.

Souris River Elbow photos

Lake Agassiz, etc

A few documents pertaining to Lake Agassiz and other glacial lakes that formed from melt water of the Laurentide Ice Sheet as it melted from about 20,000 on to 8,000 years ago.



Reconstruction of Glacial Lake Hind of Southwestern Manitoba

Maps, structure, and other docs


hidden_valleys_M33-2012-4-eng.pdf  Buried valleys and till in the Canadian Prairies: geology, hydrology, and origin.

Camas_red.pdf     Keenan Lee's 2009 publication on a study of the Camas Prairie region in Montana.  Catastrophic flooding from glacial Lake Missoula resulted in massive uphill (yep) currents and the creation of giant current ripples (gcr) that are 30 to 40 feet high.