Section 7077 - (11-53). Maps(a) The operator of every mine shall make and maintain, or cause to be made and maintained, a clear and accurate map, showing all the workings of such mine. All underground workings shall be surveyed and mapped before they are allowed to become inaccessible.(b) Mine maps shall be brought up to date at least once every six months.(c) The mine maps shall be available near the mine for inspection by the Division.Cal. Code Regs. Tit. 8, § 7077