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The photo shows the city of Orán (lower-right) and a small section of Aniceto Arce (top), a Bolivian province that is surrounded by the Bermejo River and Río Grande de Tarija. The meandering rivers in this image are sourced in the Andes Mountains and generally flow southeast through valleys in the foothills—the region between the high mountains and plains. The Iruya River deposits particles of silt and clay as it flows into the valley centered in this image.

Rivers of the Andean Foothills

Meandering waterways distribute sediments across a foothill valley in Argentina. View the full story

Credits: NASA / Expedition 69 Crew
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  • Earth Observatory Image of the Day
TakenJune 19, 2023
Image CreditNASA / Expedition 69 Crew
Size1024x683px
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