Fireline is a break in fuel, made by cutting, scraping, or digging with a bulldozer or hand tools.
Big Bend National Park - This past Thursday Big Bend National Park's surplus Wildland Fire Engine 864 was transferred to the Marathon Fire Department. Engine 864 is a 2011 Ford F-550 that
Wildland Firefighting Tactics - Fire (U.S. National Park Service)
What do blunderbuss fire? - Quora
Fire Management - Yellowstone National Park (U.S. National Park Service)
Careers in Wildland Fire
NWCG Standards for Wildland Fire Resource Typing, PMS 200
WF: Working in Wildland Fire - Fire (U.S. National Park Service)
Wildland experience: Forest Service digs in on fire line training, News
What is the advantage of overlapping fields of fire? - Quora