
Skwentna River winds through the northwestern corner of this high-elevation terrain in the Matanuska-Susitna Borough, where steep topographic contours define a landscape dominated by ice and glacial movement. The southeastern portion of the quadrangle is anchored by the massive Hayes Glacier, illustrating the complex glacial drainage patterns that feed the region's river systems. In this unpopulated stretch of the Alaska interior, the map primarily serves as a record of natural transition and hydrological flow. The sheer density of contour lines across the township boundaries of t19n r20w and t18n r19w highlights the significant elevation changes that separate the glacial ice from the river valley below, marking the raw intersection of periglacial processes.
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This is the sole edition of this map. No revisions or reprints were ever made.
1949 · Tyonek
USGS Topo · 1:250,000
1951 · Tyonek
USGS Topo · 1:250,000
1958 · Tyonek C-8
USGS Topo · 1:63,360
1958 · Tyonek D-8
USGS Topo · 1:63,360
1958 · Tyonek
USGS Topo · 1:250,000
1958 · Tyonek D-7
USGS Topo · 1:63,360
1958 · Tyonek C-7
USGS Topo · 1:63,360
1965 · Tyonek
USGS Topo · 1:250,000
2016 · Tyonek D-8 SE
USGS Topo · 1:25,000
2016 · Tyonek D-7 SW
USGS Topo · 1:25,000