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Extraction Procedure

The following steps were taken in the conversion of the data from the DCW format to ARC/INFO format:
(1) These coverages are in geographic coordinate system -- no projection was performed.
(2) Because of the extracting software used (WIRE, VECTOR, and POINT), some secondary attributes were left out during the conversion process. This includes STATUS in the road and railroad coverages, and TYPE in the contour coverage. This should not be a problem for most users. If someone needs such secondary attributes, he/she will need to look into other sources.

Last modified on 12 May, 1997 Return to CITAS Homepage