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The U. S. Geological Survey has previously experienced the impacts on the National Mapping Program that are associated with implementing a readjustment of the horizontal datum. The impacts of these past readjustments were minimal compared to those of the current readjustment. The Geological Survey currently has produced and published over 60,000 different map products. The 7. 5-minute mapping program is nearing completion with over 85 percent of the conterminous States mapped. The intermediate-scale mapping program of the conterminous United States is scheduled for completion of planimetric editions by the end of 1986. It is apparent that until digital cartographic data are available, implementation of the North American Datum 1983 will primarily consist of cartographic adjustment of existing map products.
Additional Publication Details
NORTH AMERICAN DATUM 1983 IMPLEMENTATION IMPACTS ON THE USGS NATIONAL MAPPING PROGRAM.
American Congress on Surveying & Mapping
Falls Church, VA, USA
Larger Work Title:
Technical Papers of the American Congress of Surveying and Mapping
Technical Papers, 45th Annual Meeting - ACSM: Theodolite to Satellite. Papers presented at the 1985 ASP-ACSM Convention (American Society of Photogrammetry).