Smaller common herbivores include the snowshoe hare and the northern flying squirrel. Typical Herpetofauna are the spotted frog, Pacific treefrog, western toad, long-toed salamander, and possibly the Pacific giant salamander. Climate is maritime-influenced, cool, moist temperate with relatively mild winters and dry summers. The growing season ranges from 45 to 100 days. Surface Water Characteristics.
Perennial streams are generally fairly steep and deeply incised, exhibiting much structural control.
Major rivers include the Clark Fork and the North Fork of the Clearwater. Fire, insects, and disease are the principal natural sources of disturbance. Mass wasting also occurs in some areas. Fires were mostly large, low frequency, high intensity, stand-replacing fires, except for the eastern quarter of the Section, which had mostly low intensity, frequent ground fires. Fire suppression efforts have altered the fire regime to a large extent.