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8th Annual Smithsonian Magazine Photo Contest Travel
Exploring a sand bank of the Rio Negro in the biggest river archipelago of the world. The color of the water comes from humic acid.

Exploring a sand bank of the Rio Negro in the biggest river archipelago of the world. The color of the water comes from humic acid.

Photo Detail
Date Taken: 12.2008
Date Uploaded: 12.2010
Photo Location:
Copyright: © Roberto Simoni