Spatial Coverage
- Perry County (Tenn.)1
- Peterborough (County)1
- Peterborough (Ont. : County)1
- Pictou (County)1
- Pictou (N.S. : County)1
- Pine County (Minn.)1
- Pine County.1
- Powell County (Mont.)1
- Pugwash1
- Pugwash (N.S.)1
- Pugwash.1
- Ramsey County1
- Ramsey County (N.D.)1
- Rappahannock County (Va.)1
- Rhode Island1
- Rhode Island.1
- Richland County (Wis.)1
- Rio Grande (Colo.-Mexico and Tex.)1
- Robinson Mining District (Nev.)1
- Rockford (Wash.)1
