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Park personnel with tractor on roadside Kings Mountain National Military Park; National Park Service
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Men working in dirt, truck, tractor Mammoth Cave National Park; National Park Service
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Group of workmen planting tree, tractor Mammoth Cave National Park; National Park Service
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Tractor and grader leveling road Mammoth Cave National Park; National Park Service
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Road grader and tractor grading road Mammoth Cave National Park; National Park Service
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Dirt road with tractor in left corner Great Smoky Mountains National Park Headquarters Residence Area; Entrance Road, II-R-Const-3292, Physical Facilities - Roads - Construction of Roads
Tractor used in schinus cleanup Everglades National Park; National Park Service On slide: 1-17-78; Using bombardier & tractor pulling schinus - Unit 2
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1978-01-17
Control of erosion by planting lespedeza Kings Mountain National Military Park; National Park Service Control of erosion by planting lespedeza
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Yellowstone photo album 27, page 42 Yellowstone National Park
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Circa 1930
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Stumps are being pulled from road bed by caterpillar tractor Mammoth Cave National Park; National Park Service
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Stumps are being pulled from road bed by caterpillar tractor Mammoth Cave National Park; National Park Service
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Yellowstone photo album 24, page 82 Yellowstone National Park
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Circa 1908
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Loading schinus branches onto tractor Everglades National Park; National Park Service On slide: 1-17-78; Connie Toops; Pulling schinus - Unit II
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1978-01-17
Yellowstone photo album 6B, page 71 Yellowstone National Park
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Circa 1942
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Mobile building Biscayne National Park; National Park Service Photographs of Biscayne National Park; two men riding in tractor beside mobile building.
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1989-12
Yellowstone photo album 10, page 94 Yellowstone National Park
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Circa 1935
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Yellowstone photo album 19, page 102 Yellowstone National Park
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Circa 1938
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Tractor hauling machinery Kings Mountain National Military Park; National Park Service Road near point where new entrance road turns off to left
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1938-01
Using tractor to remove stumps from new road toBrooks Knob, 1938 Mammoth Cave National Park; National Park Service
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1938-07-24
Yellowstone photo album 31, page 126 Yellowstone National Park
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Circa 1936
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