A series of five CD ROMs with the total of over 630 USGS 1:200.000 scale, topographic maps in a common (*.png), computer file format.
Each CD can be purchased in a separately or as a set.
All maps are calibrated for Touratech QV (TTQV) software.
The maps can be used with the TTQV software, or with many other mapping or GIS software packages as well as with just about any computer graphics program. Some programs (for example OziExplorer) provide for direct import of QV Navigator (QVN) maps together with calibration.
The maps can be used on the computer as well as in the printed form.