This causes the soils of these forests to be much drier, and also increases the danger from fire.
The forests of western Washington and Oregon, unlike most timberlands of the Rocky Mountain Region, are as dense as any forests in the world.

Even at midday it is as dark as twilight in these forests.

The trees are gigantic.

They tower 150 to 300 feet above the ground.

Their trunks often are 6 feet or larger in diameter.