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Location

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Cave, New Discovery, survey party on Fossil Avenue Mammoth Cave National Park; National Park Service
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1939-09
Cave, survey party at work during opening of end of Fossil Avenue, 1942 Mammoth Cave National Park; National Park Service
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1942-03
Unidentified cave entrance Mammoth Cave National Park; National Park Service
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1938-06
Cave, Robertson's Avenue Mammoth Cave National Park; National Park Service
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1940-07
Cave, Robertson's Avenue Mammoth Cave National Park; National Park Service
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1940-07
Unidentified cave entrance Mammoth Cave National Park; National Park Service
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1938-06
Frozen Niagara Mammoth Cave National Park; National Park Service
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Circa 1934
Frozen Niagara Mammoth Cave National Park; National Park Service
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Circa 1934
Cave, Eyeless Crayfish Mammoth Cave National Park; National Park Service
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1941-08
Interior of cave Mammoth Cave National Park; National Park Service
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Circa 1935
Cave, Eyeless Crayfish Mammoth Cave National Park; National Park Service
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1941-08
Cave in Cedar Sink Mammoth Cave National Park; National Park Service
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Circa 1930
Tree in cave Mammoth Cave National Park; National Park Service
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1940-12
Cave, saltpeter works Mammoth Cave National Park; National Park Service
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1940-10
Frozen Niagara Mammoth Cave National Park; National Park Service
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Circa 1934
Cave, Frozen Niagara entrance, 1941 Mammoth Cave National Park; National Park Service
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1941-09
Cave cliff walk Mammoth Cave National Park; National Park Service
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1939-03-30
Cave, saltpeter vats Mammoth Cave National Park; National Park Service
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Circa 1935
Cave, saltpeter vats Mammoth Cave National Park; National Park Service
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Circa 1935
Tree in cave Mammoth Cave National Park; National Park Service
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1940-12
Cave formation, Violet City Mammoth Cave National Park; National Park Service
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1939-06
Mammoth Cave, Frozen Niagara Mammoth Cave National Park; National Park Service
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Trail to Historic Entrance Mammoth Cave National Park; National Park Service
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1939-10
View of cave formations Mammoth Cave National Park; National Park Service
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Circa 1930
Cave, New Discovery, Onyx Avenue Mammoth Cave National Park; National Park Service
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Cave, tourists in Corkscrew, 1941 Mammoth Cave National Park; National Park Service
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1941-08
Cave formation, Violet City Mammoth Cave National Park; National Park Service
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1939-06
Interior of narrow cave entrance Mammoth Cave National Park; National Park Service
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Circa 1935
Cave, tourists in Corkscrew, 1941 Mammoth Cave National Park; National Park Service
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1941-08
View of cave formations Mammoth Cave National Park; National Park Service
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Circa 1930
Cave, onyx colonnade formation Mammoth Cave National Park; National Park Service
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Circa 1942
Cave, Drapery Room formations Mammoth Cave National Park; National Park Service
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Circa 1942
View of cave formations Mammoth Cave National Park; National Park Service
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Circa 1930
Caves, Golden Fleece formations Mammoth Cave National Park; National Park Service
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Circa 1942
Completed cave trail Mammoth Cave National Park; National Park Service
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Circa 1935
Completed trail, New Discovery, 1942 Mammoth Cave National Park; National Park Service
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Circa 1941
Passage with rubble Mammoth Cave National Park; National Park Service
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Circa 1935
Trail construction, Fossil Avenue, 1941 Mammoth Cave National Park; National Park Service
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Circa 1941
Completed trail, New Discovery, 1942 Mammoth Cave National Park; National Park Service
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Circa 1941
Cave, New Discovery, Onyx Altar Mammoth Cave National Park; National Park Service
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Cave, Snowball Dining Room Mammoth Cave National Park; National Park Service
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1940-07
Path to Mammoth Cave entrance Mammoth Cave National Park; National Park Service
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1938
Cave, helictite formations, Morrison Avenue Mammoth Cave National Park; National Park Service
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Circa 1942
Number 25, mouth of Crystal Cave Mammoth Cave National Park; National Park Service
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1938
Cave, New Discovery, gypsum Mammoth Cave National Park; National Park Service
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1939-09
Cave, New Discovery, Onyx Altar Mammoth Cave National Park; National Park Service
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Cave, Snowball Dining Room Mammoth Cave National Park; National Park Service
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1940-07
Cave, Mammoth Dome from above, 1941 Mammoth Cave National Park; National Park Service
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1941-08
Cave, helictite formations, Morrison Avenue Mammoth Cave National Park; National Park Service
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Circa 1942
Cave, formations in Fossil Avenue, 1942 Mammoth Cave National Park; National Park Service
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1942-03
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Items per page (50):
Page 1 of at least 14
About 650 Items

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