The green leaves of deciduous trees and shrubs usually act as a fuel break, but under severe drought conditions, they too are not match for the flames.
A Forest Service engine crew member keeps his eyes to the green, watching for spot fires that could ignite from stray embers in the unburned fuel.
After constructing indirect fireline away from the wildfire's edge, a firefighter begins to burn out the interior fuel to secure the fireline and starve the wildfire of its fuel.