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2017 Map of Ophir C-3 SE

Name: 2017 Topographic Map of Ophir C-3 SE
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

The Innoko River dominates the northern landscape of this interior Alaskan territory, its winding course and abandoned oxbows creating a complex wetland environment. In this remote stretch of the Yukon-Koyukuk region, the river's meandering path has carved out distinctive water bodies like Horseshoe Lake, illustrating the dynamic nature of the subarctic drainage system.

South of the main channel, the terrain is characterized by a network of smaller tributaries and isolated basins. Notable features include Big Lake and Round Lake, which sit amidst the low-lying reaches fed by Taft Cr and Finland Cr. To the southwest, Coffee Cr drains the more elevated sections of the quadrangle. This 2017 survey provides a high-resolution look at the hydrography of the region, documenting the shifting waterways and lake formations that define the wilderness landscape of the Innoko valley.