Permafrost Area - Alaska Railroad Tracks
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
- Ray Pestrong Geosciences Slide Collections, San Francisco State Unviersity