
1. Lake Erie Region Crawford, Erie, Mercer, Venango
2. Allegheny National Forest Region Cameron, Clarion, Clearfield, Elk, Forest, Jefferson, McKean, Potter, Tioga, Warren
3. Valleys of the Susquehanna Region Centre, Clinton, Columbia, Juniata, Lycoming, Mifflin, Northumberland, Snyder, Union
4. Pocono Mountain Region Bradford, Carbon, Lackawanna, Luzerne, Monroe, Pike, Schuylkill, Sullivan, Susquehanna, Wayne, Wyoming
5. Three Rivers Region Allegheny, Armstrong, Beaver, Butler, Lawrence, Washington
6. Southern Alleghenies Region Bedford, Blair, Cambria, Fayette, Fulton, Greene, Huntingdon, Indiana, Somerset, Westmoreland
7. Great Valley and Lowlands Region Adams, Berks, Cumberland, Dauphin, Franklin, Lancaster, Lebanon, Perry, York
8. Delaware River Estuary Region Bucks, Chester, Delaware, Lehigh, Montgomery,
Northampton, Philadelphia
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