The growing season lasts approximately from May 15 to September 10. It is probably much shorter at high elevations. Surface Water Characteristics. Many streams traverse the Section, although extensively rugged areas have little surface water. Some lakes occur in broader valleys.
Midsummer soil moisture deficiencies frequently occur on well drained sites.
Soils are normally wet or moist under these circumstances. Wetlands occupy about 40 percent of the area. Wildfire is a very common disturbance factor due to the relatively warm and dry summer climate and frequent lightning storms. Human disturbance is mainly restricted to subsistence and recreational hunting, although there is occasional mining. Kutchin, Koyukon, Tanana, Tanacross, Han, and Upper Tanana Athabaskins reside in this Section.