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Terms and Definitions
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Uncontrolled Fire
Any fire which threatens to destroy life, property or natural resources, and either is not burning within the confines of firebreaks, or is burning with such intensity that it cannot be readily distinguished with ordinary tools commonly available.

Underburn
A fire that consumes surface fuels but not trees or shrubs.
See also Surface Fuels

Understory Fire
A fire burning in the understory, more intense than a surface fire with flame lengths of 1-3 m.

Smoke and fire in a stand of trees.

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