Geographic Information Systems (GIS) provide the means for storing, querying, analyzing, correlating, modeling, and displaying digital cartographic data, remotely sensed imagery, and geographically referenced field survey and sampling data.
In the business of managing public lands, the BLM collects and utilizes this data as it relates to or describes a piece of land and the resources on and under it. Data might be information about bird nesting sites or wild horse herd use areas. It might be legal land survey information or legal descriptions of land parcels. Real-time fire progression maps and maps-on-demand are two other customer products developed from this data. The common thread is that this information is tied to the land.