ZTopo is a tool for seamlessly viewing United States Geological Survey topographic maps. It can overlay geographic and UTM grids on maps, supports printing, and transparently downloads maps from the Internet as needed.
| Tags | Maps |
|---|---|
| Licenses | GPLv2 |
| Operating Systems | Mac OS X Windows UNIX / Linux |
| Implementation | C++ Qt Berkeley DB JSON Boost GDAL Proj4 Python |
| Translations | English |