Collection General Maps
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MapColor image map : [ports of entry, United States-Canadian border] Scale 1:25,000. Each sheet separately titled. "Projection and 1000-meter grid: Universal Transverse Mercator." "Photoimagery rectified by optical scanning of simultaneously exposed B/W panchromatic and B/W infrared 1:70,000 scale aerial photographs taken October 28, 1975, by the Department of Energy, Mines and Resources, Ottawa, Ontario, Canada." Available also through the Library of Congress Web site as a raster image. Includes diagr. of "Adjoining color image ...
- Contributor: Geological Survey (U.S.) - Canada. Department of Energy, Mines and Resources - U.S. Customs Service
- Date: 1978
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