
Black River meanders through the heart of this coastal Alaskan landscape, part of an intricate network of waterways in the Kusilvak Census Area. This hydrographic study reveals a low-lying terrain dominated by the fluid movements of the Kipniarak River, which intersects the eastern portion of the quadrangle. To the south, the Kipungolak River and Kun River further define the wet, marshy character of this delta region. The map reflects a landscape almost entirely shaped by water, where subtle changes in elevation dictate the paths of these multiple river systems as they weave through the Yukon-Kuskokwim Delta. This 2020 record serves as a precise baseline for understanding the shifting hydrology of this subarctic environment, where land and water exist in a state of constant transition.
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This is the sole edition of this map. No revisions or reprints were ever made.
1951 · Marshall
USGS Topo · 1:250,000
1952 · Kwiguk
USGS Topo · 1:250,000
1952 · Kwiguk A-5
USGS Topo · 1:63,360
1952 · Marshall D-7
USGS Topo · 1:63,360
1952 · Marshall D-6
USGS Topo · 1:63,360
1954 · Marshall
USGS Topo · 1:250,000
2020 · Marshall D-7 NW
USGS Topo · 1:25,000
2020 · Marshall D-6 SW
USGS Topo · 1:25,000
2020 · Marshall D-6 NW
USGS Topo · 1:25,000
2020 · Marshall D-7 SE
USGS Topo · 1:25,000