
The North Fork Big River meanders across this wilderness quadrangle in the Bethel Census Area, illustrating a landscape defined by glacial outwash and braided water systems. This 2019 survey documents a region devoid of permanent settlements or infrastructure, where the terrain is dominated by the broad valley of the river and its tributary, the Lyman Fork. The mapping of townships t22n r28w and t21n r28w reveals the complex hydrologic patterns of the subarctic, showing how seasonal flows shape the drainage basins. For researchers, this sheet provides a high-resolution view of the native topography and watercourses before significant anthropogenic change or modern climate-driven shifts in river morphology.
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.
1949 · McGrath
USGS Topo · 1:250,000
1950 · McGrath
USGS Topo · 1:250,000
1951 · Lime Hills
USGS Topo · 1:250,000
1954 · McGrath A-4
USGS Topo · 1:63,360
1954 · Lime Hills D-5
USGS Topo · 1:63,360
1958 · McGrath A-3
USGS Topo · 1:63,360
1958 · Lime Hills D-4
USGS Topo · 1:63,360
1958 · McGrath
USGS Topo · 1:250,000
1958 · Lime Hills
USGS Topo · 1:250,000
2019 · Lime Hills D-5 SE
USGS Topo · 1:25,000