QGIS (formerly known as Quantum GIS) is a popular open source GIS software application. QGIS can be downloaded for free.

Screenshot showing three parts of the screen of QField to collect field data.

Collecting GIS Data in the Field Using QGIS and QField

Jeff Oppong

This QGIS tutorial takes you through the steps to synchronize a map project with QField in order to collect GIS data using a mobile device.

Growth of GIS job listings with the term open source.

Five Reasons to Start Using QGIS

Caitlin Dempsey

Here are five compelling reasons to start using the open-source GIS platform QGIS, a free and open source software.

Free Ways to Learn QGIS

Caitlin Dempsey

If you want to start learning how to use QGIS, a free and open source GIS software package, there are some excellent free resources out there. 

Open Source GIS and Freeware GIS Applications

Caitlin Dempsey

There are many open source GIS and web mapping applications to choose from.

Screenshot from a GIS software program showing an aerial image with geospatial data overlays for Missouri.

Finding GIS Data and Using QGIS to Map Caves

GIS Contributor

Dackery Geiman outlines the challenges he encountered finding geospatial data about caves and using QGIS to map cave density in Missouri.

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