EarthWorks Geospatial Catalog

Washington metropolitan area / prepared by Air Survey Corporation, Reston, Va., 1974 ; prepared for Metropolitan Washington Council of Governments, Transportation Planning Board.

"The preparation of this map has been financed in part through a grant from the U.S. Department of Transportation, Urban Mass Transporatation Administration, under the Urban Mass Transportation Act of 1964, as amended." Includes index to adjoining sheets.
Transportation Planning Board
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