The USTopo products are not the "good old" 1:24K. Rather, they are GeoPDFs generated out of The National Map layers (with one exception).
You can get the classic scanned topos (Digital Raster Graphics, DRGs) via WMS: [drg] type=WMS url=http://raster.nationalmap.gov/ArcGIS/services/DRG/TNM_Digital_Raster_Graphics/MapServer/WMSServer layers=0,1,2,3,4,5,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23 levels=24 bbox=-180,90,180,-90 srs=EPSG:102113 spherical_mercator=true tms_type=google The orthoimagery layer is available via this WMS (note: this is NAIP plus some higher resolution imagery): [naip] type=WMS url= http://isse.cr.usgs.gov/ArcGIS/services/Combined/SDDS_Imagery/MapServer/WMSServerlayers=0 levels=24 bbox=-180,90,180,-90 srs=EPSG:102113 spherical_mercator=true tms_type=google The National Map is available via this WMS (Zoom levels 13+): [tnm] type=WMS #url=http://tnmdev.cr.usgs.gov/arcgis/services/TNM_Vector_Large/MapServer/WMSServer url=http://services.nationalmap.gov/arcgis/services/TNM_Vector_Large/MapServer/WMSServer layers=4,5,6,8,9,10,11,12,13,14,15,18,19,20,21,22,23,24,26,27,28,29,32,33,34,35,36,38,39,40,41,42,43,44,45,47,48,49,50,51,53,54,56,57,58,59 levels=24 bbox=-180,90,180,-90 srs=EPSG:102113 spherical_mercator=true tms_type=google You can also grab small scale National Map tiles directly (zoom 1-12): http://basemap.nationalmap.gov/ArcGIS/rest/services/TNM_Vector_Small/MapServer/tile/$z/$y/$x The WMS links are formatted for tilecache. I'm not sure what format JOSM prefers, but you can probably infer it. Note that you need to get the layer names (numbers) just right or you won't get a valid response from the server. And don't try to use EPSG:900913 even though the GetCapabilities says it works. One final thing: Do not trace roads from The National Map! Despite the normal license free status of USGS data, the roads in The National Map are currently licensed from TeleAtlas. -Eric Wolf -=--=---=----=----=---=--=-=--=---=----=---=--=-=- Eric B. Wolf 720-334-7734 On Wed, Sep 7, 2011 at 12:26 AM, Bryce Nesbitt <[email protected]> wrote: > Good old usgs topographic maps are copyright free: > http://nationalmap.gov/ustopo/**faq.html<http://nationalmap.gov/ustopo/faq.html> > > And often a very useful reference when mapping, particularly in remote > areas. > I am aware of: > http://toposm.com/us/ > > But is there a way to get USGS topographic slippymaps as a background in > JSOM? > > ______________________________**_________________ > Talk-us mailing list > [email protected] > http://lists.openstreetmap.**org/listinfo/talk-us<http://lists.openstreetmap.org/listinfo/talk-us> >
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