Backline : (1) Boundary line marked by blazed or painted trees indicating the cutting area. (2) That portion of the tailrope from the hauler to the first corner block
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}