Construction, location of proposed park entrance and checking station, 1938
Mammoth Cave National Park; National Park Service
Construction, showing location and batter boards set for oil house, 1940
Mammoth Cave National Park; National Park Service
Oconaluftee Ranger Station, site of building just before construction, mountains in background
Great Smoky Mountains National Park
Site of building just before construction. Oconaluftee Ranger Station, II-B-(1)-1475, Physical Facilities - Buildings - Administrative buildings (ranger stations and outbuildings, warden stations, fire towers, checking stations, Geological Survey gauging stations, possession cabin.
Construction, location of proposed imhoff tank and sludge bed, 1940
Mammoth Cave National Park; National Park Service
Construction, location of proposed imhoff tank and sludge bed, 1940
Mammoth Cave National Park; National Park Service
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