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State Boundaries of the United States

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: National Atlas of the United States
Publication_Date: 200506
Title: State Boundaries of the United States
Publication_Information:
Publication_Place: Reston, VA
Publisher: National Atlas of the United States
Online_Linkage:
<http://nationalatlas.gov/atlasftp.html?openChapters=chpbound#chpbound>
Description:
Abstract:
This map layer portrays the State boundaries of the United States, and the boundaries of Puerto Rico and the U.S. Virgin Islands. The map layer was created by extracting the State boundary polygons from the individual 1:2,000,000-scale State boundary Digital Line Graph (DLG) files produced by the U.S. Geological Survey. These files were then merged into a single coverage. This is an updated version of the June 2002 map layer; the date when each State was admitted to the United States was added.
Purpose:
These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the National Atlas of the United States in the use of these data.

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1972
Ending_Date: 2005
Currentness_Reference: Ground condition

Status:
Progress: Complete
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 170
East_Bounding_Coordinate: -64
North_Bounding_Coordinate: 72
South_Bounding_Coordinate: 17

Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: boundaries
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Boundaries
Theme_Keyword: State boundaries
Theme_Keyword: States
Theme_Keyword: Statehood
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: USA
Place:
Place_Keyword_Thesaurus:
U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of The United States, and Associated Areas (Federal Information Processing Standard 5-2): Washington, DC, National Institute of Standards and Technology.
Place_Keyword: Alabama
Place_Keyword: Alaska
Place_Keyword: Arizona
Place_Keyword: Arkansas
Place_Keyword: California
Place_Keyword: Colorado
Place_Keyword: Connecticut
Place_Keyword: Delaware
Place_Keyword: District of Columbia
Place_Keyword: Florida
Place_Keyword: Georgia
Place_Keyword: Hawaii
Place_Keyword: Idaho
Place_Keyword: Illinois
Place_Keyword: Indiana
Place_Keyword: Iowa
Place_Keyword: Kansas
Place_Keyword: Kentucky
Place_Keyword: Louisiana
Place_Keyword: Maine
Place_Keyword: Maryland
Place_Keyword: Massachusetts
Place_Keyword: Michigan
Place_Keyword: Minnesota
Place_Keyword: Mississippi
Place_Keyword: Missouri
Place_Keyword: Montana
Place_Keyword: Nebraska
Place_Keyword: Nevada
Place_Keyword: New Hampshire
Place_Keyword: New Jersey
Place_Keyword: New Mexico
Place_Keyword: New York
Place_Keyword: North Carolina
Place_Keyword: North Dakota
Place_Keyword: Ohio
Place_Keyword: Oklahoma
Place_Keyword: Oregon
Place_Keyword: Pennsylvania
Place_Keyword: Rhode Island
Place_Keyword: South Carolina
Place_Keyword: South Dakota
Place_Keyword: Tennessee
Place_Keyword: Texas
Place_Keyword: Utah
Place_Keyword: Vermont
Place_Keyword: Virginia
Place_Keyword: Washington
Place_Keyword: West Virginia
Place_Keyword: Wisconsin
Place_Keyword: Wyoming
Place_Keyword: Puerto Rico
Place_Keyword: Virgin Islands
Place_Keyword: U.S. Virgin Islands

Access_Constraints: None
Use_Constraints:
None. Acknowledgment of the National Atlas of the United States of America would be appreciated in products derived from these data.

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Woodley Chu
Contact_Organization: National Atlas of the United States
Contact_Address:
Address_Type: Mailing address
Address: 12201 Sunrise Valley Dr
Address: MS 561
City: Reston
State_or_Province: VA
Postal_Code: 20192
Contact_Voice_Telephone: 703-648-6375
Contact_Electronic_Mail_Address: atlasmail@usgs.gov

Data_Quality_Information:
Logical_Consistency_Report:
The map layer was checked for topological consistency using the Arc/INFO command BUILD. No other checks for logical consistency were performed on this map layer.
Completeness_Report:
This map layer includes State boundaries for all 50 States, and boundaries for Puerto Rico and the U.S. Virgin Islands. Data completeness generally reflects the content of the original DLG files.

Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 1995
Title: 1:2,000,000-scale Digital Line Graph Data - Boundaries
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Source_Scale_Denominator: 2000000
Type_of_Source_Media: CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1970
Ending_Date: 1995
Source_Currentness_Reference: Publication date
Source_Citation_Abbreviation: 2MILBD
Source_Contribution: Spatial and attribute information

Source_Information:
Source_Citation:
Citation_Information:
Originator: National Atlas of the United States
Publication_Date: 1998
Title: Hydrography Features of the United States
Publication_Information:
Publication_Place: Reston, VA
Publisher: National Atlas of the United States
Source_Scale_Denominator: 2000000
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1998
Source_Currentness_Reference: Publication date
Source_Citation_Abbreviation: ATLAS-HY98
Source_Contribution: Spatial information

Source_Information:
Source_Citation:
Citation_Information:
Originator: National Atlas of the United States
Publication_Date: 1998
Title: State Boundaries of the United States
Publication_Information:
Publication_Place: Reston, VA
Publisher: National Atlas of the United States
Source_Scale_Denominator: 2000000
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1998
Source_Currentness_Reference: Publication date
Source_Citation_Abbreviation: ATLAS-STATES98
Source_Contribution: Spatial and attribute information

Source_Information:
Source_Citation:
Citation_Information:
Originator: National Atlas of the United States
Publication_Date: 199903
Title: Hydrography Features of the United States
Publication_Information:
Publication_Place: Reston, Virginia
Publisher: National Atlas of the United States
Source_Scale_Denominator: 2000000
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 199903
Source_Currentness_Reference: Publication date
Source_Citation_Abbreviation: ATLAS-HY9903
Source_Contribution: Spatial and attribute information

Source_Information:
Source_Citation:
Citation_Information:
Originator: National Atlas of the United States
Publication_Date: 199903
Title: State Boundaries of the United States
Publication_Information:
Publication_Place: Reston, VA
Publisher: National Atlas of the United States
Source_Scale_Denominator: 2000000
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1999
Source_Currentness_Reference: Publication date
Source_Citation_Abbreviation: ATLAS-STATES9903
Source_Contribution: Spatial and attribute information

Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unknown
Title: 1:100,000-scale USGS topographic maps
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Source_Scale_Denominator: 100000
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: 1:100,000-scale base maps
Source_Contribution: Spatial and attribute information

Source_Information:
Source_Citation:
Citation_Information:
Originator: National Atlas of the United States
Publication_Date: 199911
Title: State Boundaries of the United States
Publication_Information:
Publication_Place: Reston, VA
Publisher: National Atlas of the United States
Source_Scale_Denominator: 2000000
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1972
Ending_Date: 1999
Source_Currentness_Reference: Ground condition
Source_Citation_Abbreviation: ATLAS-STATES199911
Source_Contribution: Spatial and attribute information

Source_Information:
Source_Citation:
Citation_Information:
Originator: National Atlas of the United States
Publication_Date: 200206
Title: County Boundaries of the United States
Publication_Information:
Publication_Place: Reston, VA
Publisher: National Atlas of the United States
Source_Scale_Denominator: 2000000
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1972
Ending_Date: 2001
Source_Currentness_Reference: Ground condition
Source_Citation_Abbreviation: ATLAS-CNTY200206
Source_Contribution: Spatial and attribute information

Source_Information:
Source_Citation:
Citation_Information:
Originator: National Atlas of the United States
Publication_Date: 200206
Title: State Boundaries of the United States
Publication_Information:
Publication_Place: Reston, VA
Publisher: National Atlas of the United States
Source_Scale_Denominator: 2000000
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1972
Ending_Date: 2002
Source_Currentness_Reference: Ground condition
Source_Citation_Abbreviation: ATLAS-STATES200206
Source_Contribution: Spatial and attribute information

Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Government Printing Office
Publication_Date: 20031104
Title: Ben's Guide to U.S. Government
Publication_Information:
Publication_Place: Washington, DC
Publisher: U.S. Government Printing Office
Online_Linkage: <http://bensguide.gpo.gov/3-5/state/index.html>
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20031104
Source_Currentness_Reference: Ground condition
Source_Citation_Abbreviation: STATEHOOD
Source_Contribution: Attribute information

Source_Information:
Source_Citation:
Citation_Information:
Originator: National Atlas of the United States
Publication_Date: 200301
Title: Streams and Waterbodies of the United States
Publication_Information:
Publication_Place: Reston, VA
Publisher: National Atlas of the United States
Online_Linkage:
<http://nationalatlas.gov/atlasftp.html?openChapters=chpwater#chpwater>

Source_Scale_Denominator: 2000000
Type_of_Source_Media: Online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 200301
Source_Currentness_Reference: Publication date
Source_Citation_Abbreviation: ATLAS-hydro
Source_Contribution: Spatial and attribute information

Process_Step:
Process_Description:
The 2MILBD data files were originally digitized by the National Mapping Discipline of the U.S. Geological Survey (USGS), based on the sectional maps contained in 'The National Atlas of the United States of America' published by the USGS in 1970. The sectional maps were updated during 1978-1981 and digitized in the early 1980's. The data were updated again in the early 1990's by the USGS and published on CD-ROM in 1995 as State DLGs. These DLG files were updated in 1997. Using Arc/INFO software, the DLG optional format files were converted to Arc/INFO coverages using the DLGARC command. Only State political boundaries and attribute information were extracted for inclusion. The file was compared to ATLAS-HY98. State boundary lines that crossed open water were excluded for graphic purposes, and polygons that represented islands were attributed with the appropriate State information. The individual State coverages were then merged together using the Arc/INFO command MAPJOIN. 'Slivers' created during the MAPJOIN process were identified and deleted using the ELIMINATE command.
Source_Used_Citation_Abbreviation: 2MILBD
Source_Used_Citation_Abbreviation: ATLAS-HY98
Process_Date: 1998
Source_Produced_Citation_Abbreviation: ATLAS-STATES98

Process_Step:
Process_Description:
The spatial features in ATLAS-STATES98 were compared to ATLAS-HY9903 and modified where necessary. Incorrect attributes were corrected. Puerto Rico and the U.S. Virgin Islands were added.
Source_Used_Citation_Abbreviation: ATLAS-STATES98
Source_Used_Citation_Abbreviation: ATLAS-HY9903
Process_Date: 1999
Source_Produced_Citation_Abbreviation: ATLAS-STATES9903

Process_Step:
Process_Description:
A minor adjustment was made to the shoreline in Galveston Bay, Texas.
Source_Used_Citation_Abbreviation: ATLAS-STATES9903
Source_Used_Citation_Abbreviation: 1:100,000 scale base maps
Process_Date: 1999
Source_Produced_Citation_Abbreviation: ATLAS-STATES199911

Process_Step:
Process_Description:
Boundary adjustments of 1 square mile or greater were made between the following:
1. Arkansas and Mississippi
2. Arkansas and Oklahoma
3. Arkansas and Tennessee
4. Idaho and Montana
5. Idaho and Oregon
6. Illinois and Missouri
7. Iowa and Nebraska
8. Louisiana and Mississippi
9. Missouri and Nebraska
10. Montana and Wyoming
11. Nebraska and South Dakota
12. Oklahoma and Texas
13. Tennessee and Virginia
14. Texas and Mexico (southern border of Texas)
In addition, some minor adjustments were made to other States.
Source_Used_Citation_Abbreviation: ATLAS-CNTY200206
Source_Used_Citation_Abbreviation: ATLAS-STATES199911
Process_Date: 200205
Source_Produced_Citation_Abbreviation: ATLAS-STATES200206

Process_Step:
Process_Description:
Attributes were added that provide, for each State, the month, day, and year of admission to the United States. The order of admission was also added. In addition, two line segments along the Texas/Mexico border were modified to align to ATLAS-hydro.
Source_Used_Citation_Abbreviation: ATLAS-STATES200206
Source_Used_Citation_Abbreviation: STATEHOOD
Source_Used_Citation_Abbreviation: ATLAS-hydro
Process_Date: 200505


Spatial_Data_Organization_Information:
Indirect_Spatial_Reference:
U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of the United States, and Associated Areas (FIPS 5-2): Washington, DC, National Institute of Standards and Technology.

Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 2895


Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000278
Longitude_Resolution: 0.000278
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS1980
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257222


Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: State (described by Statesp020.dbf)
Entity_Type_Definition:
First order division of a nation, including States and State equivalents.
Entity_Type_Definition_Source: National Atlas of the United States
Attribute:
Attribute_Label: Shape
Attribute_Definition: The representation of the entity in the data.
Attribute_Definition_Source: National Atlas of the United States
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Polygon
Enumerated_Domain_Value_Definition: 2-dimensional element
Enumerated_Domain_Value_Definition_Source: ESRI GIS software
Attribute:
Attribute_Label: Area
Attribute_Definition:
The size of the shape in square coverage units. In the distributed file, coverage units represent square decimal degrees.
Attribute_Definition_Source: National Atlas of the United States
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.000
Range_Domain_Maximum: 267.357
Attribute:
Attribute_Label: Perimeter
Attribute_Definition:
The perimeter of shape in coverage units. In the distributed file, coverage units represent decimal degrees.
Attribute_Definition_Source: National Atlas of the United States
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.010
Range_Domain_Maximum: 374.768
Attribute:
Attribute_Label: Statesp020
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: National Atlas of the United States
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 2896
Attribute:
Attribute_Label: State
Attribute_Definition: The name of the State or State equivalent.
Attribute_Definition_Source: National Atlas of the United States
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name:
Codes for the Identification of the States, the District of Columbia and the Outlying Areas of the United States, and Associated Areas, FIPS 5-2.
Codeset_Source:
U.S. Department of Commerce, National Institute of Standards and Technology
Attribute:
Attribute_Label: State_fips
Attribute_Definition: The 2-digit FIPS code of the State or State equivalent.
Attribute_Definition_Source: National Atlas of the United States
Attribute_Domain_Values:
Codeset_Domain:
Codeset_Name:
Codes for the Identification of the States, the District of Columbia and the Outlying Areas of the United States, and Associated Areas, FIPS 5-2.
Codeset_Source:
U.S. Department of Commerce, National Institute of Standards and Technology
Attribute:
Attribute_Label: Order_adm
Attribute_Definition:
An ordinal value indicating the State's order of admission to the United States.
Attribute_Definition_Source: National Atlas of the United States
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 50
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition:
The area is not a State. Washington, DC is a district, Puerto Rico is a commonwealth, and the U.S. Virgin Islands is a territory of the United States.
Enumerated_Domain_Value_Definition_Source:

National Atlas of the United States

Attribute:
Attribute_Label: Month_adm
Attribute_Definition: The month when the State was admitted to the United States.
Attribute_Definition_Source: National Atlas of the United States
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: January
Range_Domain_Maximum: December
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <blank>
Enumerated_Domain_Value_Definition:
The area is not a State. Washington, DC is a district, Puerto Rico is a commonwealth, and the U.S. Virgin Islands is a territory of the United States.
Enumerated_Domain_Value_Definition_Source: National Atlas of the United States
Attribute:
Attribute_Label: Day_adm
Attribute_Definition: The day when the State was admitted to the United States.
Attribute_Definition_Source: National Atlas of the United States
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 31
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition:
The area is not a State. Washington, DC is a district, Puerto Rico is a commonwealth, and the U.S. Virgin Islands is a territory of the United States.
Enumerated_Domain_Value_Definition_Source: National Atlas of the United States
Attribute:
Attribute_Label: Year_adm
Attribute_Definition: The year when the State was admitted to the United States.
Attribute_Definition_Source: National Atlas of the United States
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1787
Range_Domain_Maximum: 1959
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition:
The area is not a State. Washington, DC is a district, Puerto Rico is a commonwealth, and the U.S. Virgin Islands is a territory of the United States.
Enumerated_Domain_Value_Definition_Source:
National Atlas of the United States


Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Earth Science Information Center, U.S. Geological Survey
Contact_Address:
Address_Type: Mailing address
Address: 507 National Center
City: Reston
State_or_Province: VA
Postal_Code: 20192
Contact_Voice_Telephone: 1-888-ASK-USGS (1-888-275-8747)
Contact_Voice_Telephone: 703-648-5920
Contact_Instructions:
In addition to the address above there are other ESIC offices throughout the country. A full list of these offices is at <http://ask.usgs.gov/esic_index.html>.

Distribution_Liability:
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 U.S. Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Geological Survey in the use of these data.

Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ESRI Shapefile
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://nationalatlas.gov/atlasftp.html?openChapters=chpbound#chpbound>
Digital_Form:
Digital_Transfer_Information:
Format_Name: SDTS
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://nationalatlas.gov/atlasftp.html?openChapters=chpbound#chpbound>

Fees:
There is no charge for this map layer.


Metadata_Reference_Information:
Metadata_Date: 20060606
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Peg Rawson
Contact_Organization: National Atlas of the United States
Contact_Address:
Address_Type: Mailing address
Address: 12201 Sunrise Valley Dr
Address: MS 561
City: Reston
State_or_Province: VA
Postal_Code: 20192
Contact_Voice_Telephone: 703-648-4183
Contact_Electronic_Mail_Address: atlasmail@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None


 


Generated by mp version 2.9.1 on Mon Aug 21 14:55:50 2006