52 Pa. Stat. § 1406.8
Every owner, operator, lessor or lessee engaged in the mining of bituminous coal subject to the provisions of this act shall make or cause to be made a true and accurate map or plan of the workings or excavations of such coal mine or colliery which shall be in accordance with standards established by the department. Such maps or plans shall show in detail, and in markings of a distinctive color, all contemplated workings which are intended to be undertaken or developed within the succeeding six months and shall show, distinctively and in detail, all supports, artificial or otherwise, to be provided in accordance with the permit. Such maps or plans shall be deposited as often as once in six months with the recorder of deeds of any county in which such mining of bituminous coal is or will be conducted and in addition thereto, with such political subdivisions where mining is taking place or is contemplated, as shall request such maps. Such maps or plans shall be considered public records and shall be open to the inspection of the public and copies or tracings may be made therefrom. No mining shall be done which is not shown on such map or plan filed at least ten days previously.
52 P.S. § 1406.8