Most US Government-sourced data is essentially "public domain" (actually a slight variant sometimes called "government domain"). All boundary data you find on National Atlas and The National Map (as well as seamless.usgs.gov) are completely free for just about any use except terrorism. ;) All the Census TIGER data falls under the same license as does all Landsat (a fairly recent return from a commercial license), NAIP, and more recent flyovers like the 133 Most Populated Places 1-foot color imagery.
The only caveat is that National Atlas, The National Map, and Seamless put a cap on daily download size. This cap isn't a big deal for vector data - like your boundaries. But it's a real burden when trying to pull raster imagery, like Landsat or DRGs (scanned topo sheets). With the 1-foot Most Populated Places imagery, you'll hit your limit in about a quarter square mile of coverage. Maybe I can track down the right folks to write an official statement for the OSM wiki. -Eric -=--=---=----=----=---=--=-=--=---=----=---=--=-=- Eric B. Wolf 720-209-6818 USGS Geographer Center of Excellence in GIScience PhD Student CU-Boulder - Geography On Sun, Jun 21, 2009 at 6:37 PM, Andrew Ayre <[email protected]> wrote: > Hi, > > I see the National Atlas has a shapefile download for Federal lands. I'm > interested in getting the National forests in Arizona into OSM, but the > data sets I've found so far are crude. This one has good detail IIRC. > > I can't find licensing information for this government site. Is all US > Government data OK to use or do I need to find something explicit? Any > ideas on this particular data? > > http://nationalatlas.gov/atlasftp.html#fedlanp > > Andy > > -- > Andy > PGP Key ID: 0xDC1B5864 > > _______________________________________________ > Talk-us mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/talk-us >
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