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Cet album fait partie des albums
Cet album photos contient les sous-albums suivants :
NPS mammoth-cave-geologic-map.jpg - RKBot
Gypsum coralloids (cave popcorn; knobstone) (Edwards Avenue, Great Onyx Cave, Flint Ridge, Mammoth Cave National Park, Kentucky, USA) 2 (8313148261).jpg - Ser Amantio di Nicolao
Big Clifty Sandstone (Upper Mississippian; entrance dale to Mammoth Cave, Kentucky, USA) 2.jpg - Ser Amantio di Nicolao
Big Clifty Sandstone (Upper Mississippian; entrance dale to Mammoth Cave, Kentucky, USA) 3.jpg - Ser Amantio di Nicolao
Big Clifty Sandstone (Upper Mississippian; entrance dale to Mammoth Cave, Kentucky, USA) 1.jpg - Ser Amantio di Nicolao