
Hammer Cr provides the primary drainage through this interior Alaskan wilderness, as documented in a 2015 study by the U.S. Geological Survey. The terrain is defined by the high elevations of the Ophir region, where steep ridgelines and narrow valleys dictate the movement of water and the potential for travel. This specific area spans the township boundaries of t23s r6e, t23s r7e, t24s r6e, and t24s r7e, illustrating the Public Land Survey System grid across a landscape devoid of permanent modern settlements or roads. The absence of infrastructure highlights the remote character of this part of the Yukon-Koyukuk region during the early 21st century.
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This is the sole edition of this map. No revisions or reprints were ever made.
1951 · Ophir
USGS Topo · 1:250,000
1954 · Ophir C-3
USGS Topo · 1:63,360
1954 · Ophir B-4
USGS Topo · 1:63,360
1954 · Ophir B-3
USGS Topo · 1:63,360
1954 · Ophir C-4
USGS Topo · 1:63,360
1954 · Ophir
USGS Topo · 1:250,000
2015 · Ophir C-3 SW
USGS Topo · 1:25,000
2015 · Ophir C-4 SW
USGS Topo · 1:25,000
2015 · Ophir B-4 SE
USGS Topo · 1:25,000
2015 · Ophir B-4 SW
USGS Topo · 1:25,000