How can I obtain an aerial or satellite image for my area?

There are many free and commercial Internet sources of georeferenced satellite imagery and aerial photography usable in GIS programs. Most state governments in the United States archive imagery on GIS clearinghouse Web sites providing downloadable data without charge to users. Internet searches for either satellite imagery or aerial photography associated with a state or locality will yield Web addresses for available imagery. Larger localities may have a GIS coordinator who can provide the information for you. Otherwise, contact the local …