Northern Guam geospatial information server

Download software

This page provides links to free software that can be used to view data distributed on this site.


Quantum GIS

Quantum GIS (QGIS) is a user friendly Open Source GIS licensed under the GNU General Public License. It runs on Linux, Unix, Mac OSX, Windows and Android and supports numerous vector, raster, and database formats and functionalities. >>


Geographic Resources Analysis Support System

GRASS is a free Geographic Information System (GIS) used for data management, image processing, graphics production, spatial modelling, and visualization of many types of data. >>


Google Earth

Google Earth is a browser of satellite imagery, maps, terrain, 3D buildings and other geospatial data. It offers rich geographical content, excellent visualizations, and saving your own data. >>


ArcGIS Explorer

ArcGIS Explorer is a free and freely distributable GIS data viewer by ESRI. It delivers an easy-to-use way to view and share information geographically. >>