Carpenter building form for Imhoff basin sewage disposal line in residential area
Mammoth Cave National Park; National Park Service
Carpenter building form for Imhoff basin sewage disposal line in residential area
Mammoth Cave National Park; National Park Service
Clearing rock in preparation for transplanting shrubs and sod, 1937
Mammoth Cave National Park; National Park Service
Concrete septic tank to the Mammoth Cave hotel sewer line, 1937
Mammoth Cave National Park; National Park Service
Construction, digging ditch at central office, 1937
Mammoth Cave National Park; National Park Service
Crew from np-4 building dam to hold out water while concrete head wall is being built to hold sewage line
Mammoth Cave National Park; National Park Service
Crew from np-4 building dam to hold out water while concrete head wall is being built to hold sewage line
Mammoth Cave National Park; National Park Service
Demolishing the steel tower which supported the water reservoir prior to construction of the new water system
Mammoth Cave National Park; National Park Service
Digging ditch for waterline through section of woods, ky np-1
Mammoth Cave National Park; National Park Service
Drainage ditch at the central garage and repair shop, 1936
Mammoth Cave National Park; National Park Service
Enrollees covering sewage disposal line from Mammoth Cave hotel, 1937
Mammoth Cave National Park; National Park Service
Enrollees from no. 3 digging sewer line, 1937
Mammoth Cave National Park; National Park Service
Enrollees from no. 3 digging sewer line, 1937
Mammoth Cave National Park; National Park Service
Enrollees from no. 3 digging sewer line, 1937
Mammoth Cave National Park; National Park Service
Enrollees from no3 digging sewer line in residential area
Mammoth Cave National Park; National Park Service
Enrollees of ky np-1 at work on sewer line, 1937
Mammoth Cave National Park; National Park Service
Enrollees of ky np-1 at work on sewer line, 1937
Mammoth Cave National Park; National Park Service
Enrollees of ky np-1 at work on sewer line, 1937
Mammoth Cave National Park; National Park Service
Enrollees smoothing concrete walls of septic tank, Mammoth Cave hotel sewage line, 1937
Mammoth Cave National Park; National Park Service
Enrollees working on septic tank to sewage disposal line from Mammoth Cave hotel, 1937
Mammoth Cave National Park; National Park Service
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