Road building in Mammoth Cave National Park /
Unedited film. A rope-drawn ferry carries a truck across a stream and trucks dump rocks at a crushing plant. Men place rocks on a conveyor belt, dig in rocky hillside, construct a building, rake gravel dumped by a truck, and remove debris from an abandoned shack that is demolished by a caterpillar t...
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| Format: | Electronic Video |
|---|---|
| Language: | English |
| Published: |
Washington, D.C. :
United States. Department of the Interior,
1936.
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| Subjects: | |
| Online Access: |
Full text (Emmanuel users only) |