For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.
Lake Shasta Caverns
Lake Shasta Caverns is an extraordinarily well-decorated solution cave that contains an especially diverse assemblage of calcite cave formations ranging from millimeters to tens of meters. The caverns are developed in the lower Permian McCloud Limestone, an unusual carbonate rock for the region in that it is not highly re-crystallized or metamorphosed, thus preserving a diverse fossil fauna and flora marine record from 270 million years ago.
Location: Shasta County, CA
Year designated: 2012
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Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.
Last Updated: June 28, 2012