Abstract: Abstract: The County Boundary with Detailed Shorelines database was created using TIGER/LINE 2000 shapefile data gathered from ESRI's Geography Network. The individual county shapefiles were processed into Arc/Info coverages and then appended together to create complete state/county coverages. RITA/BTS Hydrographic data was integrated to create detailed shorelines.
Purpose: Purpose: The United States County Boundary database is a geographic database of county political boundaries. The database includes boundaries for all 50 states plus Puerto Rico and Washington D.C.. Supplemental_Information: The RITA/BTS County Boundary Database contains TIGER 2000 geometry and attributes. To find out more about TIGER/Line files and other Census TIGER data base derived data sets visit http://www.census.gov/geo/www/tiger.
| Field Number | Attribute | Description | Data Type |
| 0 | FID | Internal feature number. | Long Integer representing an object identifier |
| 1 | Shape | Feature geometry. | Geometry |
| 2 | STFIPS | State FIPS code | Character String |
| 3 | CTFIPS | County FIPS code | Character String |
| 4 | STATE | State name | Character String |
| 5 | COUNTY | County name | Character String |
| 6 | VERSION | Version of the database | Character String |