• 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.
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