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Digital Geodata Series
DGS98-1 Monochromatic Bit-Mapped Image of New Jersey Planimetric Base Map (1:500,000 scale)



A bit-mapped image of the U.S. Geological Survey 1:500,000 scale, planimetric base map for New Jersey has been compiled by the N.J. Geological Survey. The monochromatic image was scanned at 400 dots-per-inch resolution from a stable-base, mylar map. The image was georegistered and rectified to the 1983 North American Datum (NAD83) in State plane coordinate feet using the ARC/INFO Geographic Information System. The registration process used four links corresponding to 1-degree intersection points from a geographic grid covering New Jersey. The image was processed after registration to increase the clarity of the image. Post-processing steps included: 1) removing line boundaries for built-up town areas over 10,000 population; 2) removing population integer codes corresponding to lines specified in the previous item; and 3) removing the 1 degree geographic grid lines. The bit map uses an uncompressed tagged image file format(TIFF). Image registration parameters are included in an accompanying ASCII text file.

Click on the image below for a detailed view

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Department of Environmental Protection
Geological and Water Survey
P. O. Box 420
Mail Code:29-01
Trenton, NJ 08625-0420

Phone: (609) 292-1185
FAX: (609) 633-1004