Caucasus Mountains #
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Image credit: NASA., under PD
The mountain range spans 1,125 km (700 mi), forming part of the southern Russian border, and crossing Georgia, Armenia, and Azerbaijan from left to right respectively. With a snowline of approximately 3,350 m (11,000 ft) and many peaks over 4,500 m (14,760 ft), much of the snow seen in this image is present year round.
Also visible in this photo are apparent phytoplankton blooms in the Caspian Sea, marked by blue-green swirls.