“Geodetic control is required to support mapping of the airports across the United States”

photo + GPS visualisation, output from the trans-cultural mapping events

“An on-line utility that creates SVG (Scalable Vector Graphics) maps and profiles from GPS waypoints and tracks.’’

“TerraServer contains 3.3 tera-bytes of high resolution USGS aerial imagery and USGS topographic maps.”

Digital Elevation Modeling and Mapping Digital Elevation Models

providing survey and mapping services to public and private organisations since 1975

‘This network, the National Spatial Reference System (NSRS), provides the foundation for transportation and communication; mapping and charting; and a multitude of scientific and engineering applications’

view photos and waypoint notes on terraserver basemap

mentioned before for possibly creating 3d maps

digital and paper map source

:::Specialising in Land, Engineering, Building, Aerial Surveys and Digital Mapping:::