Streams in the east flow to the Yukon River, whereas those of the west side flow towards Norton Sound. Following the prevailing topography, streams have parallel courses flowing either northeast or southwest. There are some thaw lakes in the valleys. Most of the Section is underlain by permafrost. Wetlands occupy up to 53 percent of the area.
Wildfires occur frequently.
Subsistence and recreational hunting and fishing are the major human uses. Mining was formerly important. Compiled by Alaska Region. Deep narrow valleys are prevalent. Lithology and Stratigraphy.