Wiñaymarka Lake

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Wiñaymarka Lake (also: Huiñaymarca) is the southern branch of Lake Titicaca in Bolivia and Peru. The lake is hypothesised to have dried up during the Middle Formative Period as a result of a long-term drop in precipitation in the Altiplano from 400 to 200 BCE.

Adapted from Wikipedia (CC BY-SA). Photography via Wikimedia Commons.