QGIS is a free and open source Geographical Information System.
- Download QGIS Version 3.6 from https://qgis.org/en/site/forusers/download.html:
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Follow the instructions provided by the installer you downloaded.
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Before installing QGIS, you must first install Python 3.6. Use the 64-bit installer if you're using MacOS 10.9 or later, or the 64-bit/32-bit installer if you're using an earlier version of MacOS.
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When you click on the installer, you will see this page (the image shows version 3.4, but the image will be nearly identical for version 3.6):
Double-click on Install QGIS 3 LTR.pkg
to install the software.
You may need to change security & privacy settings to allow app downloads from outside sources.
Launch QGIS 3.6 Desktop 3.6.0. A new project will look like this:
Instructions are modified from Michelle A. McSweeney