ARM 17.24.518. BUFFER ZONES

(1) All mining activities, including highwall reduction and related reclamation, must cease at least 100 feet from a property line, permanent structure, unmineable or unreclaimable steep or precipitous terrain, or any area determined by the department to be of unique scenic, historical, cultural, or other unique value. If special values or problems are encountered, the department may modify buffer zone requirements.