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The tunnel is supported by pore ice (ice in the open spaces between soil particles) in the soil. Outside the Permafrost Research Tunnel in Fox, Alaska.

Credit to read: Photo by Jacquelyn Hams (PolarTREC 2008), Courtesy of ARCUS

Photographer: Jacquelyn Hams
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Focal Length: 
6.3mm
File Size: 
1217034
Computed Mime: 
image/jpeg
Max Aperture: 
f/3.3
Height: 
2112
Width: 
2816
Make: 
PENTAX Corporation
Model: 
PENTAX Optio WPi
Exposure Time: 
1/125s
ISO: 
80

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