Geographic features names and locations are maintained by the U.S. Board on Geographic Names in the USGS Geographic Names Information System (GNIS), the official Federal database for domestic geographic feature names data.
This site is updated whenever the USGS makes new database files available for public use. Currently, this happens about twice per year.
1. Check the listing in the Geographic Names Information System public query site.
2. For suggested corrections or additions to cultural (manmade) features (schools, churches, cemeteries, etc.), email gnis_manager@usgs.gov. Please provide as much information as possible including the full official name of the feature, source of the name, location (coordinates if available), class of feature (feature definitions), and reason for change or addition.
3. To change the name of a natural feature or to apply a name to natural feature that does not have one, complete the official Board on Geographic Names Form or submit the same information via email to BGNEXEC@usgs.gov.
Suggested additions or corrections will be verified by USGS Names Data Specialists. Cultural feature changes may be entered into the official GNIS within a few days or up to a month depending on workload, but it may take a few months for the changes to be reflected on this and other web sites. Natural feature name actions require formal review by the Board on Geographic Names and can take up to six months. You will be notified of the status and completion of the request. Please submit questions to gnis_manager@usgs.gov.