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Volcán Poás is labeled in the image center, a horizontally stretched rough rectangle of tan rock surrounded primarily by deep green foliage. On the right end of the tan rock region a slight crater is labeled Laguna Caliente. Just below Laguna Caliente in the deep green foliage is a dark spot labeled Laguna Botos. The surrounding Costa Rica landscape appears to have numerous peak ridges and valleys leading away from the volcano.

Roiling Poás Volcano

The restless Costa Rican volcano sustains a hot, ultra-acidic crater lake that shares similarities to Martian environments.

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