P1090607 3D map of the caverns. The area was an inland sea 250 million years ago. Marine plants and animals built a limestone reef along the edge of the sea. 60 million...
3D map of the caverns. The area was an inland sea 250 million years ago. Marine plants and animals built a limestone reef along the edge of the sea. 60 million…
P1090613 According to the official website : Between four and six million years ago, hydrogen-sulfide-rich (H2S) waters began to migrate through fractures and faults in...
According to the official website : Between four and six million years ago, hydrogen-sulfide-rich (H2S) waters began to migrate through fractures and faults in…
P1090617 With time, the active level dropped to form deeper cave passages. In abandoned cave passages above, blocks fell from the ceiling and speleothems (cave...
With time, the active level dropped to form deeper cave passages. In abandoned cave passages above, blocks fell from the ceiling and speleothems (cave…
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P1090624 The caves are home to thousands of Mexican freetail bats.
The caves are home to thousands of Mexican freetail bats.
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