Morainal and thaw lakes and ponds are scattered throughout the lowlands and make up about 15 percent of the Section. Most streams arise from the nearby mountains, and many have headwaters comprised of lakes in ice-carved basins. Permafrost is limited to isolated masses. Wetlands occupy 55 percent of the area. The occurrence of wildfires is low.
Permanent settlements occur primarily along the coast or adjacent to the larger rivers.
Yupik and Alutiiq Eskimos occupy the northern and southern portions of this Section, respectively. Compiled by Alaska Region.