Permafrost Area - Alaska Railroad Tracks

About This Item

Photo of Alaska Railroad tracks that are elevated and protected from the permafrost. The construction and use of railroads can often upset the frozen permafrost's temperature and consistency, which leads to thawing of soil and subsequent sinking or uneveness of ground below tracks.

Created by
Pestrong, Ray
Date
Type
Slide
Format
TIFF
Source
Ray Pestrong Geosciences Slide Collections, San Francisco State Unviersity
Locale
Alaska
Rights
Public
Views
3647

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