
Forty and One-half Mile Cr winds through this interior Alaskan landscape, serving as the primary drainage across the township lines of t22n r2w and t21n r2w. The terrain is defined by a dense network of ridges and drainages that emphasize the isolation of the Yukon-Koyukuk region. Mapping by the U.S. Geological Survey in the early 21st century highlights a wilderness devoid of modern structures or road networks, where the Public Land Survey System grids are the only markers of human organization. The map provides a study of subarctic topography, showing the elevation changes and stream patterns that shape this portion of the interior north of the Yukon River.
5 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
This is the sole edition of this map. No revisions or reprints were ever made.
1951 · Beaver
USGS Topo · 1:250,000
1956 · Beaver
USGS Topo · 1:250,000
1964 · Beaver
USGS Topo · 1:250,000
1990 · Beaver C-2
USGS Topo · 1:63,360
1990 · Beaver D-2
USGS Topo · 1:63,360
1990 · Beaver C-3
USGS Topo · 1:63,360
1990 · Beaver D-3
USGS Topo · 1:63,360
2017 · Beaver D-3 SE
USGS Topo · 1:25,000
2017 · Beaver C-2 SW
USGS Topo · 1:25,000
2017 · Beaver C-3 NE
USGS Topo · 1:25,000