USGS Maps in Google Maps Gallery
noreply@blogger.com (Mapperz)
USGS Topo Maps in Google Maps Gallery Over 193,000 Topo Maps georeferenced in a seamless USGS Layer with a transparency control on the left. See the Maps http://maps.google.com/gallery/details?id=z4f-ZuCLmiKg.kUOos96GzVzs&hl=en source: http://googleenterprise.blogspot.com/2014/03/us-geological-survey-and-google-maps.html Mapperz Mapping News Blog