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Collection: Calvin Geological Photographs
Browse Items (748 total) for Calvin Geological Photographs
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Lencite porphyry found in Margaret Cave, Ark., late 1890s or early 1900s
Petrology
Petrified forest, south of Adamano, Ariz., late 1890s or early 1900s
Man in Connell's Quarry, Iowa, early 1890s or late 1900s
Hill showing Carboniferous, Mena, Ark., late 1890s or early 1900s
Big Fork Hotel and Post Office, Mena, Ark., late 1890s or early 1900s
Carboniferous, Mena, Ark., late 1890s or early 1900s
Mena
Shale exposure east of Mena, Ark., late 1890s or early 1900s
E
Waterfall, Mena, Ark., late 1890s or early 1900s
Located east of Mena, Ark.
Carboniferous, Mena, Iowa, late 1890s or early 1900s
Located east of Mena, Ark.
Carboniferous, Mena, Ark., late 1890s or early 1900s
Located east of Mena, Ark.
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