Grassroots Mapping is a series of participatory mapping projects involving communities in cartographic dispute. Seeking to invert the traditional power structure of cartography, the grassroots mappers used helium balloons and kites to loft their own “community satellites” made with inexpensive digital cameras.

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North arrow

July 16th, 2012 by Juan

If anybody is interested in ground control point targets for aerial photography, I can leave here this North arrow for you to print (courtesy of the Integration and Application Network, University of Maryland Center for Environmental Science (