
The Nowitna River meanders through this portion of the Yukon-Koyukuk Census Area, defining the drainage patterns and low-lying topography of the region. This 2019 survey illustrates the intricate network of oxbows and river bends that characterize the southern sections of the map, particularly within the boundaries of T21s R19e and T21s R20e. The terrain transitions from the active floodplain of the river to higher, undulating ground in the north toward T20s R19e. As a modern topographic study, it provides precise elevation data and section lines essential for understanding the hydrology and land divisions in this interior Alaskan wilderness.
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This is the sole edition of this map. No revisions or reprints were ever made.
1950 · Medfra
USGS Topo · 1:250,000
1953 · Medfra C-4
USGS Topo · 1:63,360
1954 · Medfra C-5
USGS Topo · 1:63,360
1954 · Medfra D-5
USGS Topo · 1:63,360
1954 · Medfra D-4
USGS Topo · 1:63,360
1959 · Medfra
USGS Topo · 1:250,000
2019 · Medfra D-5 SW
USGS Topo · 1:25,000
2019 · Medfra C-5 NW
USGS Topo · 1:25,000
2019 · Medfra C-5 SW
USGS Topo · 1:25,000
2019 · Medfra D-4 SW
USGS Topo · 1:25,000