The McMurray Formation was deposited by an extensive drainage system that flowed northward, following a regional north-south low that was created by the dissolution of thick salt deposits in the Devonian Elk Point Group deep within the subsurface.
The McMurray Formation was deposited by an extensive drainage system-south low that was created by the dissolution of thick salt deposits in the Devonian Elk Point Group deep within the subsurface. This was following a regional north. This extensive drainage system flowed northward.