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24. Kind of Blue

Shallow water, deep mystery.
Landsat-8 image courtesy of the U.S. Geological Survey.
Puzzle by Galen, Bellingcat - with inspiration from this guide.. Part of the Multispectral Viewpoints series.
This image was captured by Landsat 8, and shows a combination of the shortwave infrared bands.
We can see an area of land that is usually dry, but fills with water during the rainy season.
What is the name of this topographic depression?
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