These forest systems have become fragmented due to population increase and deforestation.

"And if it's not eradicated, there is a potential threat to the national forest system."

The management has to obtain healthy and stable forest systems that produce wood with a minimum human intervention.

The logging has been under the control of the state-run forest system.

This forest system also serves as headwaters for major rivers that provide the water supply to more than 200,000 people.

That land accounts for about a quarter of the entire forest system and includes many of its most pristine areas.

This made it possible for the national forest system to expand into the eastern United States.

But this was not the intent of Congress in setting up the national forest systems.

Shasta County has extensive forests, which cover over one half the land area with commercially productive forest systems.

Recreation on the national forest system provides much of the income for the communities most directly affected by the fire.