Topographic Map Viewer

ZTopo is a free tool for viewing United States Geological Survey topographic maps on Mac OS, Windows, and Linux computers.


Screenshot of ZTopo


Known Limitations


This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

Help Out!

I wrote ZTopo in my spare time, and currently I'm paying to host the map data. For legal reasons I can't accept any form of compensation for my work, but you could:


Email address: Last name (Hawkins) followed by first letter of first name (Peter)

Download ZTopo 0.2

Sep 19, 2010
Mac OS X (12Mb)
Windows (7.9Mb)
Source Code (295k)
Github Page