(a) The owner or operator of each mine shall make an accurate map or plan of the mine and mine workings on a scale not exceeding two hundred (200) feet to the inch or as otherwise approved by the inspector. The map or plan shall: (i) Exhibit all openings or excavations, shafts, tunnels, slopes, planes, gangways, entries, cross headings, rooms and installations related to safety; (ii) Show the direction of air currents in the mine; (iii) Accurately delineate the boundary line between the mine and adjoining mines; (iv) Be prepared with reference to and show the boundaries of the legal subdivision in which the mine is located; (v) Be accurately brought up to date every six (6) months. (b) The owner or operator shall: (i) Maintain a copy of each map or plan for use at the mine by the inspector, his deputy or any miner employed at the mine; (ii) File a copy of each map or plan with the inspector; (iii) Maintain a copy of the current map or plan on bulletin boards near mine entrances and at all principal working stations.
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