This layer group provides four layers, "drg_24k", "drg_25k", "drg_63k", "drg_250k", which contain the USGS topographic maps for the scales 1:24,000, 1:25,000, 1:63,360, and 1:250,000 respectively. For more information please see the USGS's topographic maps website.

Extras: 1:24,000 DRGs

  • This layer is called “drg_25k” and provides the USGS Topographic Maps available at the 1:24,000 scale. The area covered by these maps is quite limited and mainly covers the Beechey Point area.
  • "":http://wms.alaskamapped.org/cgi-bin/bdl_extras.cgi?VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG:102006&BBOX=202512.917982112,2276778.03281333,203842.070834421,2277831.3237529&WIDTH=636&HEIGHT=504&LAYERS=drg_24k&STYLES=&EXCEPTIONS=application/vnd.ogc.se_xml&FORMAT=image/png&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE


Extras: 1:25,000 DRGs

  • This layer is called "drg_25k" and provides the USGS Topographic Maps available at the 1:25,000 scale.
  • "":http://wms.alaskamapped.org/cgi-bin/bdl_extras.cgi?VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG:102006&BBOX=139193.903484811,1073454.47095822,141213.207523419,1075054.67415863&WIDTH=636&HEIGHT=502&LAYERS=drg_25k&STYLES=&EXCEPTIONS=application/vnd.ogc.se_xml&FORMAT=image/png&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE


Extras: 1:63,360 DRGs

  • This layer is called “drg_63k” and provides the USGS Topographic Maps available at the 1:63,360 scale. The area covered by these maps is covers most of Alaska, with the exception of some areas in the "Aleutian Islands":http://en.wikipedia.org/wiki/Aleutian_Islands.
  • "":http://wms.alaskamapped.org//cgi-bin/bdl_extras.cgi?VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG:102006&BBOX=139221.420206511,1072844.02307066,143529.268822209,1076257.7898982&WIDTH=636&HEIGHT=502&LAYERS=drg_250,drg_63k,drg_25k,drg_24k&STYLES=&EXCEPTIONS=application/vnd.ogc.se_xml&FORMAT=image/png&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE

Extras: 1:250,000 DRGs

  • This layer is called “drg_250k” and provides the USGS Topographic Maps available at the 1:250,000 scale. These maps cover the entire state of Alaska.
  • "":http://wms.alaskamapped.org//cgi-bin/bdl_extras.cgi?VERSION=1.1.1&REQUEST=GetMap&SRS=EPSG:102006&BBOX=137980.289057582,1070139.9759959,146394.055885116,1076807.48933093&WIDTH=640&HEIGHT=500&LAYERS=drg_250&STYLES=&EXCEPTIONS=application/vnd.ogc.se_xml&FORMAT=image/png&BGCOLOR=0xFFFFFF&TRANSPARENT=TRUE

Extras: Canadian Topographic Maps

  • This layer is called “can_drg_250k” and provides the “Natural Resources Canada”:http://www.nrcan-rncan.gc.ca/com/index-eng.php 1:250,000 scale topographic covering Canada. For more information, please see “Natural Resources Canada Mapping Services”:http://maps.nrcan.gc.ca/topo_e.php . This layer is intended to supplement the other DRG layers by providing topographic data for areas near Alaska that are not covered by the USGS maps.