Every owner, operator, lessor or lessee engaged in the mining of bituminous coal or every general manager, superintendent or other person in charge of, or having supervision over, any bituminous coal mine or mining operation presently open, or hereafter opened or reopened, shall give, or cause to be given, by registered mail or certified mail, a mining schedule notice of the present existence of such a mine or mining operation, or of the intent to commence or to recommence mining or mining operations at least six months prior to mining under the property to the political subdivisions within which such mine or mining operation is, or is to be, located and to the owners of record of the surface lands overlying such existing or proposed mine or mining operation. All notices given, or caused to be given, to the owners of record of the surface lands pursuant to this section shall contain a statement that the maps or plans required under sections 5 and 8 of this act¹ have been filed with the appropriate public officers, and shall contain the locations of the offices where such maps and plans may be inspected.