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Maps & Geospatial: Open Source Geographic Information Systems (GIS)

This guide provides an introduction to open source GIS packages, which are free to use on Windows, Mac, and Linux platforms.

Quantum GIS (QGIS)

GDAL

PostGIS

R

GeoDa

Penn State University, E-Dutton Online Geospatial Program, Open Educational Resources

SAGA System for Automated Geoscientific Analyses

GRASS