What is GIS?
A Geographic Information System (GIS) is a powerful computer mapping system that provides users with an understanding of locations and events through combining information as a series of layers or themes. There are four major components to a GIS: software, hardware, data and personnel. GIS software is the component that provides the tools and functions that enable users to capture, store, retrieve, analyze, and display spatial information. The hardware component describes the computer systems needed to run the GIS software and to create the maps. The spatial data component of a GIS is what drives the understanding of locations and events. GIS datasets can range from spatial information describing site-specific habitat conditions to information that depicts landscape level events and conditions. In most cases, GIS data consists of a database that links specific locations on the earth's surface with attribute information. Personnel are the people who utilize the GIS for their specific studies. It is these users that implement the analysis and display of the spatial data.
GIS data for download
The WWBWC provides users with the opportunity to download GIS datasets to their own computers. The GIS data that is available for download was contributed from a variety of federal, state and local agencies and organizations active in the Walla Walla River watershed. The available GIS data have been developed, analyzed and processed by GIS Analysts and organizations. It is important to note that the WWBWC and local partners make no warranty, expressed or implied, regarding the utility of any data.