osgeo - Revision 12819: /foss4g/2013/website/2013.foss4g.org/geohack/challenges
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ap-phid/
challenge-template/
cleaner-air/
coastal-explorers/
eco-cache/
ecoshop/
events/
growers-nation/
happy-places/
index.html
myair/
obstructions/
river-restoration/
smart-cities/
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