This dataset contains contains county boundaries for the Commonwealth of Pennsylvania in the PA Albers projection.
The boundaries are presented in two formats: Arc/Info polygons and as a 1-km grid. The polygons include county names in the polygon attribute tables. The grid version sets grid cells on a county boundary to 255, and the remaining cells to zero; the grids contain 320 rows of 540 cells each.
The files for FTP download are
Files and directories accessible only from the local ESSC network are
This dataset is in an Albers equal area projection centered on Pennsylvania.
Name: | Albers Conic Equal Area |
Projection units: | meters |
Spheroid: | GRS80/WGS84 |
Datum: | NAD83 |
1st standard parallel: | 40.0° N |
2nd standard parallel: | 42.0° N |
Central meridian: | -78.0° (W) |
Latitude of origin: | 39.0° N |
False easting: | 0 |
False northing: | 0 |
Cell size for gridded data: 1 km by 1 km.
Grid dimensions: 320 lines (rows) of 540 samples (columns) each.