
The interior of the Yukon-Koyukuk region is defined here by complex topographic contours and the systematic grid of the Public Land Survey System. This 2016 survey shows a landscape largely shaped by the natural drainage patterns that flow through township boundaries including T5s R19e and T5s R20e. The map serves as a primary record of elevation and hydrology in this portion of the Melozitna quadrangle, where the absence of roads or named settlements underscores the wilderness character of the Alaska interior. Researchers can trace the precise township and range demarcations, such as the line between T4s R19e and T4s R20e, as they were documented in the mid-2010s.
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This is the sole edition of this map. No revisions or reprints were ever made.
1951 · Ruby
USGS Topo · 1:250,000
1951 · Melozitna
USGS Topo · 1:250,000
1952 · Ruby D-4
USGS Topo · 1:63,360
1952 · Ruby D-5
USGS Topo · 1:63,360
1952 · Ruby
USGS Topo · 1:250,000
1953 · Melozitna A-4
USGS Topo · 1:63,360
1953 · Ruby D-4
USGS Topo · 1:63,360
1954 · Melozitna A-5
USGS Topo · 1:63,360
1956 · Melozitna
USGS Topo · 1:250,000
1964 · Ruby
USGS Topo · 1:250,000