What's special about our digital maps?

• Unusually wide variety of digital maps, including, for example, street maps, zip code maps, census block group maps, highway maps, satellite images, and digital elevation data (topography).

• Many levels of detail available: maps are available for the entire USA, a single state, a county, or a custom project area.

• International maps, too.

• Many computer software formats: SGSI can ship in Shapefile, Arc/Info, MapInfo, Intergraph MGE, simple ASCII, and other formats.

• Custom digital map services: Where existing digital maps are not available, SGSI can digitize or scan paper and mylar maps.

• Zip code, FSA and postal code maps.

• City and rural street maps (detailed).

• Terrain contours, digital elevation models (DEMs), and 3D maps.

• Scanned USGS topographic maps.

• Aerial & satellite photo maps.

• Coastline & country maps.

• State, county, census tract & other administrative boundary maps.

• Block-by-block maps, with demographic statistics.

• Zoning & land ownership maps

• Public Land Survey / Section, township, range maps

• Telecommunications (LATAs, Exchanges, MTA/BTAs) & other specialty maps.

Detailed street maps

With digital street maps you can see the residential and transportation patterns, pinpoint exact street addresses, and focus in closely on precise site locations. SGSI offers more than 5 gigabytes of detailed map data including the entire USA, Puerto Rico, and U. S. Trust Territories, and all metropolitan areas of Canada. In most cases, you can choose from a variety of different street maps for the same city, county or state.

Pre-scanned USGS 7-1/2" Topographic maps
 
These are raster (bit-mapped) versions of the familiar  USGS 7-1/2" quad maps. Available on CD-Rom for most of the US.
 

Aerial photo maps

Suitable for layering with your other map information. These are detailed photographs that let you see buildings, vehicles, swimming pools, vegetation and the real positions of roads.

• Details about aerial photomaps ...
   

Traffic volumes along highways and major roads

Average daily traffic counts, represented as points positioned on interstates, highways, major roads and arterials.

 

US and Worldwide elevation point and contour maps

Digital elevation models can be as detailed as 1 meter spacing, showing building forms, trees, and more.

Tower, antennae, & Other Structure Locations & Heights

For telecommunications and other applications. Updated quarterly.

Specialized Telecommunications maps

Up-to-the-minute Area Code maps plus LATA maps, Phone prefix (NXX) locations, and Telco "CO" & Switch zone maps

Our area code maps include "splits" that are projected in the future, but not yet final. For telecommunications industry users, we also distribute LATA, LEC, NXX, and Calling Area maps and data. 

• Details about Telecommunications digital maps...

Worldwide Maps

• Postal code maps.

• Street maps (detailed).

• Terrain contours, digital elevation models (DEMs), and 3D maps.

• Aerial & satellite photo maps.

• Coastline & country maps.

• State, county, census tract & other administrative boundary maps.

Detailed street maps

With digital street maps you can see the residential and transportation patterns, pinpoint exact street addresses, and focus in closely on precise site locations. SGSI has perhaps the world's largest assortment of detailed digital street maps.

• Detailed list of worldwide street maps ....

International political maps & demographic data

For Asia, Africa, South America and related worldwide administrative maps ...
 

Population density maps of China, Japan, & other countries


 

Postal code maps for Europe, Australia & other countries

Suitable for "find the nearest dealer" applications, international marketing, & other applications.