National Parks, Promise And Challenge
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Examines the dual purposes of U S national parks to preserve natural wonders and to serve as recreation areas for the public. Visits Yosemite, Yellowstone and the Grand Canyon, discussing the conflict between developers and conservationists.
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Sources
- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, year, creator, length, format, description
- 16mm Filmography (legacy record) — sound, catalog record
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