Join Free
1958 Map of Tyonek B-7, 1977 Print
Loading...
Loading map...

1958 Map of Tyonek B-7

USGS Topo · Published 1977

About this map

Mount Spurr and Mount Torbert anchor this high-altitude landscape within the Kenai Peninsula and Matanuska-Susitna Boroughs. The 1958 survey documents a region dominated by massive ice fields and active glacial movement, with the North Twin Glacier and South Twin Glacier defining the northwestern sector. The topography is characterized by vast systems of crevasses that mark the surfaces of the Harpoon Glacier and Pothole Glacier. In the south, the Nagishlamina River cuts through the glacial outwash, while the Barrier Glacier creates a formidable wall of ice. This map captures a pristine glaciated environment in the mid-20th century, showing the intricate relationship between high mountain peaks and the river systems they feed.

Find a feature on this map

10 named features on this map. Tap any name to fly to it.

Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.

Map Details

Date Portrayed1958
Date Published1977
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:63,360
Physical Dimensions18 x 21.9 inches

Editions of this 1958 Tyonek B-7 Map

Historical Maps of Matanuska-Susitna Through Time

885 maps found

Featured Locations

Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain