The Nagarunja Sagar Dam on India's Krishna River was built between 1955 and 1972. Erected by the hand labor of 125,000 workers, it is the largest masonry dam in operation in the world. Standing at 120m high, and 800m long, it is made up of huge rocks and mortar. The image was acquired April 11, 2012, covers an area of 16 by 16 km, and is located at 16.6 degrees north, 79.3 degrees east.
Image credit: NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team
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