Libre Map Project – free DRG project September 16, 2006 by gisuser An effort to make the entire USGS DRG set freely available to the public via the Internet Archive. See http://libre.redjar.org/maps/ Related Posts:Mapping 15 years of land cover change in AmericaFree eBook: Python 3 Object-Oriented ProgrammingNOAA wants to hear from users about OpenData