Geology and Minerals
Bandera Volcano Ice Cave, also known as Zuni Ice Cave, is a lava tube cave in New Mexico with an internal temperature significantly less than above-ground summertime ambient temperature; it contains perennial ice. The inside temperatures can fluctuate between −1 and 10 °C (31 and 50 °F). Some areas of the ice cave never reach above freezing. For years, local Indigenous people used the cave to store food.
Canna, Scotland.
Bitter Creek National Wildlife Refuge.
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