U.S. Geological Survey, 19810501, Geographic Names Information System (GNIS): U.S. Geological Survey, Reston, VA.Online Links:
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.00028. Longitudes are given to the nearest 0.00028. Latitude and longitude values are specified in decimal degrees.
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 9,999,999,999 |
| Formal codeset | |
|---|---|
| Codeset Name: | Principles, Policies, and Procedures: Domestic Geographic Names |
| Codeset Source: | Principles, Policies, and Procedures: Domestic Geographic Names, By Donald J. Orth, Executive Secretary, Domestic Geographic Names (emeritus) and Roger L. Payne, Executive Secretary, United States Board on Geographic Names and Domestic Geographic Names, Third printing (revised) and Preliminary Online Edition, 1997 (<http://geonames.usgs.gov/pppdgn.html>). |
| Formal codeset | |
|---|---|
| Codeset Name: | Principles, Policies, and Procedures: Domestic Geographic Names |
| Codeset Source: | Principles, Policies, and Procedures: Domestic Geographic Names, By Donald J. Orth, Executive Secretary, Domestic Geographic Names (emeritus) and Roger L. Payne, Executive Secretary, United States Board on Geographic Names and Domestic Geographic Names, Third printing (revised) and Preliminary Online Edition, 1997 (<http://geonames.usgs.gov/pppdgn.html>). |
| Range of values | |
|---|---|
| Minimum: | -90.00000 latitude |
| Maximum: | 72.00000 latitude |
| Units: | Decimal degrees |
| Resolution: | 0.00001 |
| Range of values | |
|---|---|
| Minimum: | -180.00000 longitude |
| Maximum: | 180.00000 longitude |
| Units: | Decimal degrees |
| Resolution: | 0.00001 |
| Range of values | |
|---|---|
| Minimum: | -90.00000 |
| Maximum: | 72.00000 |
| Units: | Decimal degrees |
| Resolution: | 0.00001 |
| Range of values | |
|---|---|
| Minimum: | -180.00000 |
| Maximum: | 180.00000 |
| Units: | Decimal degrees |
| Resolution: | 0.00001 |
| Value | Definition |
|---|---|
| United States (US). | United States |
| Canada (CA) | Canada |
| Mexico (MX) | Mexico |
| Micronesia (FM) | Federated States of Micronesia |
| Marshall Islands (RM) | Marshall Islands |
| Palau (PS) | Republic of Palau. |
| Antarctica (AY). | Antarctica |
| Formal codeset | |
|---|---|
| Codeset Name: | Codes For The Identification Of The States, The District Of Columbia And The Outlying Areas Of The United States, And Associated Areas. |
| Codeset Source: | Federal Information Processing Standards Publication 5-2, Codes For The Identification Of The States, The District Of Columbia And The Outlying Areas Of The United States, And Associated Areas. |
| Formal codeset | |
|---|---|
| Codeset Name: | Counties And Equivalent Entities Of The United States, Its Possessions, And Associated Areas. |
| Codeset Source: | Federal Information Processing Standards Publication 6-4, Counties And Equivalent Entities Of The United States, Its Possessions, And Associated Areas. |
| Formal codeset | |
|---|---|
| Codeset Name: | Feature class values and definitions for the Geographic Names Information System |
| Codeset Source: | Geographic Names Office, USGS, 523 National Center, Reston, VA 20192-0523 (gnis_manager@usgs.gov). |
| Formal codeset | |
|---|---|
| Codeset Name: | Feature designation values and definitions for the Geographic Names Information System |
| Codeset Source: | Geographic Names Office, USGS, 523 National Center, Reston, VA 20192-0523 (gnis_manager@usgs.gov). |
Unstructured text data.
Unstructured text data.
| Range of values | |
|---|---|
| Minimum: | -13,500 |
| Maximum: | 20,500 |
| Units: | Feet |
| Formal codeset | |
|---|---|
| Codeset Name: | The Geographic Names Information System (GNIS) |
| Codeset Source: | The official database of names assigned to standard USGS products according to USGS policy and procedures, including standard 7.5x7.5 degree quadrangle maps and digital products. Geographic Names Office, USGS, 523 National Center, Reston, VA 20192-0523 (gnis_manager@usgs.gov). |
The Geographic Names Information System was developed by the U.S. Geological Survey in cooperation with the U.S. Board on Geographic Names.
Roger L. Payne
U.S. Geological Survey
Chief, Geographic Names Project
523 National Center
Reston, Virginia 20192
703 648 4544 (voice)
gnis_manager@usgs.gov
- Hours_of_Service: Monday through Friday 0730-1700 Eastern Time
The GNIS is the official vehicle for geographic names use by the Federal Government and the source for applying geographic names to Federal maps & other products. The GNIS supports the U.S. Board on Geographic Names (BGN), a Federal body created in 1890 and established in its present form by Public Law in 1947. The Board serves the Federal Government, other government agencies, and the public as the central authority to which name inquiries, name issues, and new name proposals can be directed. The GNIS provides the data to government agencies and to the public. The GNIS also supports the U.S. Geological Survey National Map (<http://nationalmap.usgs.gov/>) as the source for the gazetteer search in The National Map viewer and as an active layer in The National Map for Federal boundaries and geographic features not available from state or local sources.
U.S. Geological Survey, Unknown, 1:24,000-scale topographic maps: U.S. Geological Survey, Reston, VA.
U.S. Geological Survey, Unpublished material, Records of the U.S. Board on Geographic Names.
U.S. Forest Service, Unknown, U.S. Forest Service 1:24,000-scale topographic maps and visitor maps.
Service, National Ocean , Unknown, National Ocean Service charts.
Authorities, State Names , Council of Geographic Names Authorities (COGNA), National Park Service (NPS), Federal, state and local agencies, Public, and sources, Other, Unknown, Unknown.
Person who carried out this activity:
Roger L. PayneData sources used in this process:
U.S. Geological Survey
Chief, Geographic Names Project
523 National Center
Reston, Virginia 20192
703 648 4544 (voice)
gnis_manager@usgs.gov
- Hours_of_Service: Monday through Friday 0730-1700 Eastern Time
Person who carried out this activity:
Louis A. YostData sources used in this process:
U.S. Geological Survey
Chief, Geographic Names Information Section
523 National Center
Reston, Virginia 20192
703 648 4552 (voice)
lyost@usgs.gov
- Hours_of_Service: 0900-1700 Eastern time
Person who carried out this activity:
Robin D. WorcesterData sources used in this process:
U.S. Geological Survey
Chief, Geographic Names Information Section
523 National Center
Reston, Virginia 20192
703 648 4551 (voice)
rworcest@usgs.gov
- Hours_of_Service: 0900-1700 Eastern time
Person who carried out this activity:
Roger L. Payne
U.S. Geological Survey
Chief, Geographic Names Project
523 National Center
Reston, Virginia 20192
703 648 4544 (voice)
gnis_manager@usgs.gov
- Hours_of_Service: Monday through Friday 0730-1700 Eastern Time
U.S. Geological Survey, Unknown, The National Map.Online Links:
U.S. Geological Survey, Unknown, The National Atlas.Online Links:
U.S. Geological Survey, Unknown, The National Hydrography Dataset.Online Links:
National Imagery and Mapping Agency, Unknown, GEOnet Names Server.Online Links:
U.S. Census Bureau, Unknown, LandView.Online Links:
During Phase I data compilation, a random sample of 10% of the entries in the system were visually verified against the compilation source data (large-scale USGS topographic maps) to ensure an accuracy rate of at least 95%. Subsequent data compilation and input processes ensure accuracy with programmed validation checks for format and content, visual examination, and spot checks of data.
Accuracy of these digital data is based upon the use of source graphics which are compiled to meet National Map Accuracy Standards. Comparison to the graphic source is used as control to assess digital positional accuracy.
This dataset contains information about physical and cultural geographic features identified by a proper name and location, with the exception of most roads and highways.
During Phase I data compilation, a random sample of 10% of the entries in the system were visually verified against the compilation source data (large-scale USGS topographic maps) to ensure logical consistency of locative references (geographic coordinates, topographic map, and county. Subsequent data compilation and input processes include programmed validation checks for logical consistency, visual examination, and spot checks of data.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- None. Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data.
Geographic Names Project, U.S. Geological Survey
523 National Center
Reston, Virginia 20192
703 648 4544 (voice)
gnis_manager@usgs.gov
- Hours_of_Service: Monday through Friday 0730-1700 Eastern Time
Geographic Names Information System
Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made by the USGS regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. The Geological Survey will warrant the delivery of this product in computer-readable format.
| Data format: | Data extract files for States and territories are available for download via web browser. Four topical extracts of the data base are also available: the U.S. Populated Places File lists information about all communities throughout the United States that are described in the data base, the U.S. Concise File lists information about major physical and cultural features throughout the United States that are described in the data base, the Historical Features File lists information about features which are no longer in existence, and the Antarctica File contains entries throughout the continent of Antarctica as approved for use by the United States Government. in format ASCII |
|---|---|
| Network links: |
<http://geonames.usgs.gov/> |
Custom data sets may be requested. Contact gnis_manager@usgs.gov
Roger L. Payne
U.S. Geological Survey
Chief, Geographic Names Project
523 National Center
Reston, Virginia 20192
703 648 4544 (voice)