A GIS is a computer system capable of capturing, storing, analyzing, and displaying geographically referenced information; that is, data identified according to location.
Pursuant to 43 U.S.C. 1460, the U.S.
GNIS data is available from a number of sources and services.
Does the Geographic Names Information System (GNIS) Database contain entries for geographic features that are historical?
Yes, GNIS actively seeks names of features that no longer exist. There are more than 100,000 such entries in the database now. To search for them, type the word "(historical)" (along with other name words if desired) in the name field.
Can I add new entries to the Geographic Names Information System for manmade and administrative features, such as churches, cemeteries, schools, shopping centers, etc.?
Suggested corrections and additions to the data are accepted from any source for review, and upon validation, will be committed to the database.
Why are some manmade and administrative features not listed in the Geographic Names Information System?
The USGS Geographic Names Project maintains an active and extensive program to add features not in the database, primarily through partnerships with Federal, State, and local agencies, and with other organizations having relevant data.