
The Cosna River carves a winding path through this portion of the Yukon-Koyukuk region, defining the drainage patterns of the surrounding wilderness. The terrain is characterized by a complex network of contours that illustrate the subtle elevation shifts common to this interior Alaskan landscape. To the east, Bent Tree Lake sits as a primary water feature, surrounded by wetlands and smaller unnamed ponds. This 2017 survey by the U.S. Geological Survey provides a precise view of the hydrology and topographic structure within the townships of t4s r21w and t4s r20w. The map serves as a detailed record of the natural environment in a region where human infrastructure is largely absent, focusing instead on the hydrographic data of the Cosna River corridor.
8 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1948 · Kantishna River
USGS Topo · 1:250,000
1951 · Kantishna River
USGS Topo · 1:250,000
1952 · Kantishna River
USGS Topo · 1:250,000
1952 · Kantishna River C-3
USGS Topo · 1:63,360
1952 · Kantishna River C-4
USGS Topo · 1:63,360
1953 · Kantishna River B-4
USGS Topo · 1:63,360
1953 · Kantishna River B-3
USGS Topo · 1:63,360
1954 · Kantishna River C-3
USGS Topo · 1:63,360
1955 · Kantishna River C-4
USGS Topo · 1:63,360
1964 · Kantishna River
USGS Topo · 1:250,000