Quaternary geology and bedrock subcrop of the Cold Lake to Ft. McMurray area, Alberta - Surface structure, Empress Fm. Unit 2 silt and clay - (1:250,000 scale gridded data) - (ASCII GRID) (English)

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Publisher-reported update

2026-03-04

A digital grid of the top of the Empress Fm. Unit 2 silt and clay, (the middle unit in the Empress Formation), where present, or the topography of the surrounding landscape, where Unit 2 is absent. The unit is originally modeled from borehole data and adjusted to the bedrock surface, the surface of Unit 1, and the present-day land surface. The grid is generated at a 250 m cell-size resolution, based on information as recent as 2003.

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