
The N Fork Innoko River winds through this interior Alaskan wilderness, cutting through high, ridged terrain that dominates the landscape. Located within the Yukon-Koyukuk Census Area, this specific quadrangle highlights the complex topography of the region, where steep slopes and narrow valleys define the drainage patterns of the upper Innoko basin. The map is primarily structured by the public land survey system, dividing the land into townships t20s r15e, t20s r16e, t21s r15e, and t21s r16e. These survey boundaries provide the only human-imposed framework on a landscape devoid of named settlements, roads, or structures, reflecting the extreme isolation of this portion of the Alaska interior. The detailed contour lines reveal a world of high elevations and sharp relief, centered around the life-giving waterway of the North Fork.
5 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.
1950 · Medfra
USGS Topo · 1:250,000
1951 · Ophir
USGS Topo · 1:250,000
1954 · Medfra C-6
USGS Topo · 1:63,360
1954 · Medfra D-6
USGS Topo · 1:63,360
1954 · Ophir D-1
USGS Topo · 1:63,360
1954 · Ophir C-1
USGS Topo · 1:63,360
1954 · Ophir
USGS Topo · 1:250,000
1959 · Medfra
USGS Topo · 1:250,000
2019 · Ophir C-1 NE
USGS Topo · 1:25,000
2019 · Medfra C-6 SW
USGS Topo · 1:25,000