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61. United States Historic Features - Geographic Names Information System (GNIS)

2009. U.S. Geological Survey. The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS f...

62. United States Populated Places - Geographic Names Information System (GNIS)

2009. U.S. Geological Survey. The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS f...

63. Unpaved Roads: Pennsylvania, 2009

2009. PA Department of Environmental Protection : GDC. Unpaved roads layer for Pennsylvania created by the Bureau of Watershed Managment, Conservation Districts And Nutrient Management Division.

64. U.S. Geological Survey High Resolution Orthoimagery for Erie, Pennsylvania

2009. One foot GSD, natural color (RGB), 8-bit digital orthophotography for the City of Erie, Pennsylvania. The imagery was collected using the Leica Geo...

65. U.S. Geological Survey High Resolution Orthoimagery for Erie, Pennsylvania - Tile Index

2009. TILE INDEX - One foot GSD, natural color (RGB), 8-bit digital orthophotography for the City of Erie, Pennsylvania. The imagery was collected using ...

66. U.S. Geological Survey High Resolution Orthoimagery for Pittsburgh, Pennsylvania

2009. One foot GSD, natural color (RGB), 8-bit digital orthophotography for the City of PIttsburgh, Pennsylvania. The imagery was collected using the Lei...

67. U.S. Geological Survey High Resolution Orthoimagery for Pittsburgh, Pennsylvania - Tile Index

2009. TILE INDEX - One foot GSD, natural color (RGB), 8-bit digital orthophotography for the City of PIttsburgh, Pennsylvania. The imagery was collected ...

68. USGS High Resolution State Orthoimagery for New Castle, Pennsylvania

2009. One foot GSD, natural color (RGB), 8-bit digital orthophotography for the City of New Castle, Pennsylvania. The imagery was collected using the Lei...

69. USGS High Resolution State Orthoimagery for New Castle, Pennsylvania - Tile Index

2009. TILE INDEX - One foot GSD, natural color (RGB), 8-bit digital orthophotography for the City of New Castle, Pennsylvania. The imagery was collected ...