2016 Map of Tyonek D-8 NE

About this map

The Skwentna River flows through this high-latitude terrain within the Matanuska-Susitna Borough, defining the lower elevations of a landscape shaped by glacial water systems. This 2016 survey documents the intricate braided channel of the river as it moves through the eastern portion of the quadrangle, a characteristic feature of Alaska’s glacial-fed drainage basins. The area is dominated by significant relief, with the headwaters of Portage Creek and Portage Cr carving through the northern sections while Muddy Cr drains the southern slopes. The cartography provides a clear view of the Public Land Survey System boundaries, including the intersection of t22n r19w and t22n r18w. This map is particularly valuable for understanding the hydrologic patterns of the region before further environmental shifts, capturing the precise path of these waterways in the mid-2010s.