Surface Water Characteristics. Abundant perennial streams occur, including the North and Middle Forks of the Flathead River. These drainages are moderately to deeply incised. Many lakes occur in glaciated terrain and at higher elevations, including Whitefish Lake and Lake McDonald. Fire, insects, and disease are the principal natural sources of disturbance.
Land use is dominated by wildlife habitat and recreation.
Some timber harvest also occurs. Compiled by Northern Region. This area comprises steep dissected mountains, some with sharp crests and narrow valleys. This Section is within the Northern Rocky Mountains physiographic province. Lithology and Stratigraphy.