Held Line 3 : All control line that still contains the fire when mop-up is completed. Excludes lost line, natural barriers not backfired, and unused secondary lines.
Air National Guard ANG website (and US Forest Service website), Glossary of wildfire terms, Except where noted, terms are taken from: Fireline Handbook 1998, National Wildfire Coordinating Group NWCG Handbook 3 (PMS 410-1), Glossary of Wildfire Terms (additional glossary Sites included on firefighting terms and firefighting equipment), Air National Guard, The Pentagon, USA 1998. http://en.wikipedia.org/wiki/Glossary_of_wildfire_ terms, (For Fr - Amer) {2}
National Wildfire Coordinating Group (NWCG), Glossary of Wildland Fire Terminology, NWCG Program Management Unit, National Interagency Fire Center, Boise, ID, USA 2014. http://www.nwcg.gov/pms/pubs/glossary/pms205.pdf, (For Fr - Amer) {45}
