C6218F39-1DD8-B71C-07D72464D8D9356C

Patterned Ground

Patterned Ground

Polygon patterns on the tundra develop from yearly freeze-thaw cycles. Wedges of ice that extend vertically into the ground develop geometric shapes due to the crystal structure of the ice. Aerial view of polygon patterns on tundra

U.S. National Park Service

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Image

Noatak National Preserve, Code: NOAT

Noatak National Preserve
Latitude: 68.2164459228, Longitude: -162.191162109

NPS.gov Collection

8/31/2012 11:16:14 AM

Public Can View

Tuesday, January 2, 2018 2:59:05 PM

Tuesday, January 2, 2018 2:59:05 PM

C621EAAF-1DD8-B71C-07CBD84E1E9177B5.jpg

Canon Canon, Canon PowerShot G12

1/100 sec at f / 3.2

8.108 mm

ISO 125

Friday, August 31, 2012 5:16:14 PM

jpg

1.1 MB

Scenic