Muhlenberg College
GIS Links

General References
USGS - Geographic Information Systems - explains what a GIS is, how it works, what's special about it, and its applications

GIS Basics - What is a GIS and how can it help you? - geospatial news, publications, and more

GIS dictionary - includes definitons for terms which either relate directly to GIS or which users may come across in the course of their work

Data Sources
Environmental Protection Agency - a national reference for GIS data, including a list of state geographic data depositories

USGS Real-Time Hydrologic Data - has river flow information for the entire United States

Bureau of Transportation Services - a national resource for transportation spatial data and GIS in transportaion (GIS-T) information

Federal Geographic Data Committee (FGDC) - coordinates the development of the National Spatial Data Infrastructure (NSDI) which encompasses policies, standards, and procedures for sharing geographic data

GIS Data Depot - provides free GIS data downloads and creates custom GIS data CD-ROMs for CAD, mapping, and location based applications

ArcData Online - ESRI's Internet mapping and data site; can create map images and download data

USGS National Mapping Information - mapping news, products, and services

USGS Geographic Data - data sets available to download

GIS Resources Over the Internet - good source for various types of data

Government Publications and Maps - state geospatial data and maps

Natural Resources Conservation Service - NRCS GIS and data sites

GIS Data and Maps - contains many good links to data sources

Remote Sensing - Views from Space
NASA - NASA program makes remote sensing data available and understable to the public

TerraServer - overhead imagery that can be viewed and purchased

Pennsylvania Links
Pennsylvania Spatial Data Access (PASDA) - Pennsylvania's official geospatial information clearinghouse

Pennsylvania State Data Center (PaSDC) - the Commonwealth's official source of demographic and economic data

Pennsylvania Magic - organization devoted to the furtherance of GIS in Pennsylvania

Pennsylvania Geospatial Information Council (PAGIC) - organization that facilitates the sharing of common geospatial data

GIS software grant program - grant program sponsored by the PA Department of Environmental Protection

EPA Office of Water - download basins/rivers data

Software & Equipment
ESRI - GIS and mapping software - arcview data and tutorials

Trimble - GPS equipment and tutorials

Comments or suggestions for GIS links?  Please email Emily O'Rourke