A new geographic information systems (GIS)-ready topographic-map-style template is now available from the USGS National Geospatial Program. The Topo TNM Style Template can be readily used with the ...
In the second half of the 20th century, the foundation of the U.S. Geological Survey’s national map series was the handcrafted 7.5-minute topographic map. Times change, budgets get squeezed and ...
No audio available for this content. This graphic represents the planned US Topo map production schedule for the next three- year revision cycle. The US Topo project repackages data from national GIS ...
Look closely as you drive around Christiansburg, Blacksburg and Montgomery County this week. Those V-shaped white plastic strips you spot on the ground are markers for the region's latest survey, one ...
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