The USTopo products are not the "good old" 1:24K. Rather, they are GeoPDFs generated out of The National Map layers (with one exception).<div><br></div><div>You can get the classic scanned topos (Digital Raster Graphics, DRGs) via WMS:</div>
<div><span class="Apple-style-span" style="font-family: monospace; white-space: pre-wrap; font-size: medium; "><br></span></div><div><span class="Apple-style-span" style="font-family: monospace; white-space: pre-wrap; font-size: medium; ">[drg] </span></div>
<div><span class="Apple-style-span" style="font-family: 'Times New Roman'; font-size: medium; "><pre style="word-wrap: break-word; white-space: pre-wrap; ">type=WMS
url=<a href="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">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</a>
spherical_mercator=true
tms_type=google</pre></span><div>The orthoimagery layer is available via this WMS (note: this is NAIP plus some higher resolution imagery):</div><div><br></div><div><span class="Apple-style-span" style="font-family: monospace; white-space: pre-wrap; font-size: medium; ">[naip] </span></div>
<div><span class="Apple-style-span" style="font-family: monospace; white-space: pre-wrap; font-size: medium; ">type=WMS
url=<a href="http://isse.cr.usgs.gov/ArcGIS/services/Combined/SDDS_Imagery/MapServer/WMSServer">http://isse.cr.usgs.gov/ArcGIS/services/Combined/SDDS_Imagery/MapServer/WMSServer</a>
layers=0
levels=24
bbox=-180,90,180,-90
srs=EPSG:102113
spherical_mercator=true
tms_type=google
</span></div><div><span class="Apple-style-span" style="font-family: monospace; white-space: pre-wrap; font-size: medium; "><br></span></div><div>The National Map is available via this WMS (Zoom levels 13+):</div><div><br>
</div><div><span class="Apple-style-span" style="font-family: monospace; white-space: pre-wrap; font-size: medium; ">[tnm]
type=WMS
#url=<a href="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">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</a>
spherical_mercator=true
tms_type=google
</span></div><div><span class="Apple-style-span" style="font-family: monospace; white-space: pre-wrap; font-size: medium; "><br></span></div><div>You can also grab small scale National Map tiles directly (zoom 1-12):</div>
<div><br></div><div><span class="Apple-style-span" style="font-family: monospace; font-size: 13px; "><a href="http://basemap.nationalmap.gov/ArcGIS/rest/services/TNM_Vector_Small/MapServer/tile/$z/$y/$x">http://basemap.nationalmap.gov/ArcGIS/rest/services/TNM_Vector_Small/MapServer/tile/$z/$y/$x</a></span></div>
<div><br>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.</div>
<div><br></div><div>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.</div><div><br></div>
<div>-Eric Wolf<br><br>-=--=---=----=----=---=--=-=--=---=----=---=--=-=-</div>Eric B. Wolf 720-334-7734<br><br><br><br>
<br><br><div class="gmail_quote">On Wed, Sep 7, 2011 at 12:26 AM, Bryce Nesbitt <span dir="ltr"><<a href="mailto:bryce2@obviously.com">bryce2@obviously.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Good old usgs topographic maps are copyright free:<br>
<a href="http://nationalmap.gov/ustopo/faq.html" target="_blank">http://nationalmap.gov/ustopo/<u></u>faq.html</a><br>
<br>
And often a very useful reference when mapping, particularly in remote areas.<br>
I am aware of:<br>
<a href="http://toposm.com/us/" target="_blank">http://toposm.com/us/</a><br>
<br>
But is there a way to get USGS topographic slippymaps as a background in JSOM?<br>
<br>
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</blockquote></div><br></div>