NTDB (National Topographic Data Base) Demo File

This demo diskette contains one NTDB typical file (31G01) selected from the thousands available.  It has not gone through any more check or manipulation than any of the other NTDB data sets.

The data content corresponds to a typical NTS topgraphic map sheet with one exception: for the time being, NTDB files do not contain any place names nor administrative boundaries.

The data is grouped according to the following themes:

Roads	31g01ro.zip
Contours	31g01co.zip
Vegetation	31g01ve.zip
Hydrography	31g01wa.zip
Other man made features (buildings	31g01ot.zip

The diskette also contains an ancillary data file: 31g01.zip which when unzipped will appear as a text file 31301.zip.
The files should be decompressed using PKUNZIP utility.