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The Mayn River (on the left), seen here in a false color satellite image with a portion of the Anadyr River (on the right), flows through the far northeastern corner of Siberia. Both rivers carry a great deal of sediment and over time have created an amazing number of oxbow lakes. In this forest-tundra zone, both rivers remain frozen for 8 to 9 months out of the year. Image courtesy of USGS.