United States County Boundaries is a line theme representing the boundary lines of the counties of the United States.
Purpose
United States County Boundaries provides detailed boundary lines consistent with the county, block group, tract, and state data sets and are effective for cartographic display at regional and state levels.
Supplemental Information
Largest scale when displaying the data: 1:50,000.
This dataset includes two ESRI layer files symbolizing the boundaries.
Temporal Extent
Currentness Reference
publication date
Time Instant
201003
Bounding Box
West
-179.147340
East
179.778465
North
71.390482
South
17.881242
Theme Keyword
line
detail
boundaries
Theme Keyword Thesaurus
None
Theme Keyword
boundaries
Theme Keyword Thesaurus
ISO 19115 Topic Categories
Place Keyword
United States
Puerto Rico
Place Keyword Thesaurus
Library of Congress Subject Headings
Temporal Keyword
2010
Temporal Keyword Thesaurus
None
Access Restrictions
For current Columbia affiliates only.
Use Restrictions
For educational, non-commercial use only.
Status
Complete
Maintenance and Update Frequency
Annually
Point of Contact
Contact Organization
ESRI
Delivery Point
380 New York Street
City
Redlands
State
California
Postal Code
92373-8100
Contact Telephone
909-793-2853
Contact Facsimile Telephone
909-793-5953
Contact Electronic Mail Address
info@esri.com
Native Data Set Environment
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3500
Data Quality Information
Logical Consistency Report
The shapefile is converted to SDC (Smart Data Compression) format using either tools in ArcGIS or ESRI SDC Data Development Kit Professional 2 (DDKP2). The SDC data set is then imported into a file geodatabase to verify and validate the geometry.
Completeness Report
After processing, the data set is checked for drawing display and number of records and file sizes compared with source materials.
Horizontal Positional Accuracy Report
Horizontal positional accuracy is dependent on geographic area. In most areas, accuracy is between 5 and 25 meters (16 and 82 feet). In some areas, accuracy is off by up to several tens of meters (100 feet or more). In the poorest areas, accuracy is off by up to 100 meters (328 feet).
Lineage
Source
Originator
Tele Atlas North America, Inc.
Publication Date
201003
Title
Tele Atlas MultiNet Administrative Areas, 2010
Edition
Version 2010.03
Geospatial Data Presentation Form
vector digital data
Series Information
Series Name
Tele Atlas MultiNet North America
Issue Identification
Version 2010.03
Publication Information
Publication Place
Lebanon, New Hampshire, USA
Publisher
Tele Atlas North America, Inc.
Online Linkage
http://www.teleatlas.com/
Type of Source Media
DVD-ROM
Source Temporal Extent
Time Period Information
Single Date/Time
Calendar Date
201003
Source Currentness Reference
publication date
Contribution
Attribute and geospatial data
Spatial Data Organization Information
Direct Spatial Reference Method
Vector
Point and Vector Object Information
SDTS Terms Description
SDTS Point and Vector Object Type
String
Spatial Reference Information
Horizontal Coordinate System Definition
Geographic
Latitude Resolution
0.000000
Longitude Resolution
0.000000
Geographic Coordinate Units
Decimal degrees
Geodetic Model
Horizontal Datum Name
D_WGS_1984
Ellipsoid Name
WGS_1984
Semi-major Axis
6378137.000000
Denominator of Flattening Ratio
298.257224
Entity and Attribute Information
Entity Type
Entity Type Label
ESRI_2010_us_dtl_cnty_ln
Entity Type Definition
The lines represent the boundary lines of the counties and county equivalents of the United States.
Entity Type Definition Source
ESRI
Attributes
ObjectID
Internal feature number. (Sequential unique whole numbers that are automatically generated.)
Definition Source
ESRI
Shape
Feature geometry. (Coordinates defining the features.)
Definition Source
ESRI
TYPE
The code for the type of boundary.
1
County.
2
State.
3
Coastline.
4
Shoreline.
5
International.
Definition Source
ESRI
TYPE_DESC
The description for the type of boundary.
County, State, Coastline, Shoreline, International
The description of the type of boundary.
Definition Source
ESRI
Distribution Information
Format Name
SDC
Distributor
ESRI; ESRI Offices
Name
Metadata Reference Information
Metadata Date
20110726
Metadata Contact
Contact Information
Contact Organization Primary
Contact Organization
Research Data Services (RDS), Columbia University Libraries
Contact Person
GIS/Metadata Librarian
Contact Address
Address
420 W. 118th St. 215 IAB, MC 3301
City
New York
State or Province
NY
Postal Code
10027
Contact Voice Telephone
(212) 854-6012
Contact Electronic Mail Address
data@library.columbia.edu
Metadata Standard Name
FGDC Content Standards for Digital Geospatial Metadata
