2018 Map of Black River D-4 NW
USGS Topo · Published 2018About this map
The Porcupine River carves through the northern interior of the Yukon-Koyukuk Census Area, defining the transition into the Lower Ramparts. This 2018 survey reveals a landscape largely devoid of human infrastructure, centered instead on the dramatic elevation changes of the ramparts and the winding course of the river as it flows through the northeast. The map is primarily organized by township and range boundaries, including T25n R22e and T24n R23e, illustrating the vast, unsurveyed reaches of the Alaskan wilderness.
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Map Details
Editions of this 2018 Black River D-4 NW Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1951 · Black River
USGS Topo · 1:250,000
1951 · Coleen
USGS Topo · 1:250,000
1956 · Coleen
USGS Topo · 1:250,000
1956 · Coleen A-5
USGS Topo · 1:63,360
1956 · Black River D-4
USGS Topo · 1:63,360
1956 · Black River D-5
USGS Topo · 1:63,360
1956 · Coleen A-4
USGS Topo · 1:63,360
1956 · Black River
USGS Topo · 1:250,000
1964 · Black River
USGS Topo · 1:250,000
2018 · Black River D-4 SE
USGS Topo · 1:25,000