2016 Map of Ophir A-5 SW

About this map

Big Yetna River flows through the upper and lower corners of this Yukon-Koyukuk interior landscape, which is defined largely by its complex drainage patterns and dense network of seasonal wetlands. The map shows the vast, uninhabited muskeg and low-lying river bottoms within the Public Land Survey System grids of T27s R2e, T27s R3e, T28s R2e, T28s R3e, T29s R2e, and T29s R3e. This 2016 survey illustrates the intricate hydrography of the Alaskan wilderness, where numerous unnamed ponds and small lakes dot the terrain between the river's winding course. The absence of roads or permanent structures reflects the extreme isolation of this region, providing a baseline for researchers studying changes in subarctic wetlands and water systems over time.