From the union between the technical services yielded by TerraServer and geographical data coming from USGS spring up USA Online maps. Both maps are entirely dedicated to the United States of America and they are compatible with CompeGPS Land/Air. With them you will be able to have a quality cartography for the best places of North America.

CompeGPS does not sell these maps but allows you to freely acces them from here.

We also take the opportunity to tell you about its compatibility in order that you should not lose occasion to enjoy the wide possibilities of cartographic compatibilities that you obtain with our programs.

• The US Geological Survey has provided the Digital Ortho Quadrangle (DOQ) aerial imagery data and the Digital Raster Graphics (DRG) topographical map data.
• The *zip file includes a b/w orthographic map and a coloured topographic map from USA.
• You must uncompress the file in the 'maps' folder of CompeGPS.
• Availability of maps depending on TerraServer services and Internet connection.
• Maps in format *cwms.
• DRG goes up to 1/24k scale

• For PC (Windows 7/Vista/XP):
  • CompeGPS Land/Air (7 or higher)
  • TwoNav Tablet (2.1 or higher)
• For Pocket PC (Windows Mobile 2003, 5 or 6): TwoNav Pocket (2.1 or higher).
• For iPhone/iPad/Mac: TwoNav iPhone/iPad / TwoNav Mac (2.1 or higher).
• For Symbian: TwoNav Symbian (2.1 or higher).
• For TwoNav Aventura / Sportiva