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These maps were largely made by taking photos from balloons and kites, a technique adopted and refined by Public Lab contributors. Make one yourself and it can be featured here.
oil-spill wetlands landfill garden NDVI gowanus protest
This archive represents the collective work of our community to provide an alternative source for aerial imagery, and to highlight issues of environmental and social concern with Do-It-Yourself tools. The archive provides:
Most of the maps in this archive were made in MapKnitter, a free and open source tool created by Public Lab contributors to turn aerial photos into maps.
To add your open source map to the archive, contact firstname.lastname@example.org and be prepared to provide some background and to tell the story of your map. Creative Commons and Public Domain maps are both accepted.