North America: It's Rivers
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Views the major river systems of the North American continent including their sources tributaries, and the extent of their drainage basins. Examines the economic importance of each river to its basin in terms of transportation routes and the construction of dams for power, irrigation, and drinking. Details specific problems which affect rivers including pollution and erosion., Explores the distinctive features of the major rivers of the continent, and discusses their contributions to the farming, recreation, transportation, and hydroelectric power of North America.
Complete catalog record
Views the major river systems of the North American continent including their sources tributaries, and the extent of their drainage basins. Examines the economic importance of each river to its basin in terms of transportation routes and the construction of dams for power, irrigation, and drinking. Details specific problems which affect rivers including pollution and erosion., NOTE: Two (or more) records have been merged together to create this data.
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- 16mm Filmography (legacy record) — title, year, creator, length, format, color, sound, genre, description, catalog record
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