225 ILCS 705/33.04
Current through Public Act 103-1052
Each underground map shall show, in feet and decimals thereof, the elevation of the floor of the coal at reasonable intervals on the main entries and cross-entries from the bottom of the shaft to the face of the workings; such elevations shall be referred to the floor of the coal at the bottom of the hoisting shaft.
225 ILCS 705/33.04