GIS gain much of their power from being able to collate and cross-reference many types of data by location.

The latest surveying and GPS technology create a complete GIS of a sunken battleship from the attack on Pearl Harbor

A history of the relation of geology during the first 110 years of the U.S. Geological Survey to the development of public-land, Federal-science, and mapping policies and the development of mineral resources in the United States

from The National Geospatial-Intelligence Agency

GIS database download

Election officials and activists are turning to geographic information systems and other technology to tailor their approach to finding voters.

“The following tables list NACJD data collections that contain geographic identifiers that could be geocoded for GIS analysis.”

using USGS maps to teach about Lewis & Clark

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

“…point and fly to hundreds of US and international cities. Zoom down to detail showing individual buildings, search for existing businesses by name or category, even fly to a specific address”

Digital Elevation Modeling and Mapping Digital Elevation Models

for information visualization geeks

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