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Man playing bagpipes at historical reenactment Jean Lafitte National Historical Park and Preserve
View on map 
1998
Aboriginal grasses cache, with ruler Mammoth Cave National Park; National Park Service
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Circa 1940
Survey, man with level rod in cave Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Survey, man with level rod in cave Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Survey, man with level rod in cave Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Survey, man with level rod in cave Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Rattlesnake killed near Whoppe house, ruler included for scale Mammoth Cave National Park; National Park Service
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Scale showing height of cave ceiling, Cox Case Mammoth Cave National Park; National Park Service
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1939-03-30
Scale showing height of cave ceiling, Cox Case Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Scale showing height of cave ceiling, Cox Case Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Scale showing height of cave ceiling, Cox Case Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Scale showing height of cave ceiling, Cox Case Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Yellowstone photo album 6B, page 23 Yellowstone National Park
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Circa 1942
View series 
Scale showing height of cave ceiling, Cox Case Mammoth Cave National Park; National Park Service
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1939-03-30
Survey, man with wooden rule in cave measuring formation Mammoth Cave National Park; National Park Service
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1939-03-30
Close view of moth, Callosamia promethea, with ruler for scale, 1935 Great Smoky Mountains National Park 0, Moth, Cecropia, Callosamia promethea, I-E-Inv-952, Natural Features - Fauna - Invertebrates.
1935-06
Survey, man with level rod in cave, showing height of cave Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Survey, man with level rod in cave, showing height of cave Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Survey, man with level rod in cave, showing height of cave Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Survey, man with level rod in cave, showing height of cave Mammoth Cave National Park; National Park Service
View on map 
1939-03-30
Sort (Relevance)
Items per page (20):
Page 3 of at least 5
About 96 Items

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