Photo Ecosphere Web Galleries
PHOTO WEB GALLERIES Capturing the natural living environments of park and forest lands throughout the United States
Natural Features & Landscapes
CAVES AND CAVERNS
Oregon Caves National Monument
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Exposed marble rock, formed when calcite mineral was subjected to intense heat and pressure deep underground
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Photo Ecosphere Web Galleries
Home
About
Photo Galleries
Geographic Regions
Natural Features & Landscapes
Wildlife-Fauna
Wildlife-Flora
Parks
Natural Events
Man Made Structures
Contact
Search
Search
