Bedrock topography of the Lesser Slave Lake map area, Alberta, NTS 83O

This map shows the elevation contours of the bedrock subcrop for the title map area, plotted on a topographic base. Data sources were coal exploration holes, petroleum exploration wells, seismic shotholes, and water well drillers' logs. Inset maps show data density by township, drift thickness and preglacial bedrock valley talwegs.