An intricate maze of small lakes and waterways define the Yukon Delta at the confluence of Alaska’s Yukon and Kuskokwim Rivers with the frigid Bering Sea. Wildlife abounds on the delta and offshore, where sheets of sea ice form during the coldest months of the year.

Image taken on May 26, 2002, by the ASTER instrument aboard NASA’s Terra satellite.

Credit: NASA/GSFC/USGS EROS Data Center

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