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    Color 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

    Look inside: 24 results