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Casey O'Hara: "Actually, the ice crystals had only frozen recently, but the water that it is made of came from moisture in the permafrost, trapped underground for up to 40,000 years!" At the Permafrost Tunnel in Fox, Alaska.

Credit to read: Photo by Elizabeth Eubanks, Courtesy of Casey O'Hara (PolarTREC 2009/2010), Courtesy of ARCUS

Photographer: Casey O'Hara
Download: 
Image icon Download OHara_02_25_DSC_9933.JPG (2.87 MB)
Category: 
Year: 
2009
Program: 
PolarTREC
Region: 
Amundsen-Scott South Pole Station
Topic: 
File Information
Focal Length: 
17mm
File Size: 
3009735
Computed Mime: 
image/jpeg
Max Aperture: 
f/6.3
Height: 
2848
Width: 
4288
Make: 
NIKON CORPORATION
Model: 
NIKON D300
Exposure Time: 
1/160s

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