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2010 Glacial Deposits of Northwestern Pennsylvania  
2010 Thickness of Glacial Deposits, Western Crawford County, Pennsylvania Allegheny College
2010 Thickness of Unconsolidated Deposits of Erie County, Pennsylvania Allegheny College
2004 Pennsylvania water quality database Alliance for Aquatic Resource Monitoring
2002 Urban Ecosystem Analysis Ikonos interpreted land cover for the Cobbs/Mill Creek and Tacony/Frankford Creek watersheds American Forests
1985 Urban Ecosystem Analysis Landsat interpreted land cover for the Delaware Valley American Forests
1993 Urban Ecosystem Analysis Landsat interpreted land cover for the Delaware Valley American Forests
2000 Urban Ecosystem Analysis Landsat interpreted land cover for the Delaware Valley American Forests
2005 AMC Pennsylvania Highlands Appalachian Mountain Club
2005 Critical Treasures Appalachian Mountain Club
2005 Greenway Corridors Appalachian Mountain Club
2007 Greenway Hubs Appalachian Mountain Club
2005 Mid-Atlantic Highlands Appalachian Mountain Club
2012 USFS Pennsylvania Highlands Appalachian Mountain Club
2003 Appalachian Trail centerline Appalachian Trail Conference
2003 Big Brown Bat distribution in North America Bat Conservation International
2003 Eastern Pipistrelle distribution in North America Bat Conservation International
2003 Eastern Red Bat distribution in North America Bat Conservation International
2003 Eastern Small-footed Myotis distribution in North America Bat Conservation International
2003 Evening Bat distribution in North America Bat Conservation International
2003 Hoary Bat distribution in North America Bat Conservation International
2003 Indiana Myotis distribution in North America Bat Conservation International
2003 Little Brown Myotis distribution in North America Bat Conservation International
2003 Northern Myotis distribution in North America Bat Conservation International
2003 Rafinesque's Big-eared Bat distribution in North America Bat Conservation International
2003 Seminole Bat distribution in North America Bat Conservation International
2003 Silver-haired Bat distribution in North America Bat Conservation International
2003 Southeastern Myotis distribution in North America Bat Conservation International
2003 Townsend's Big-eared Bat distribution in North America Bat Conservation International
2006 Allegheny County: Landscape Ecology and Green Infrastructure Carnegie Mellon University
2011 Choptank River Heritage Access Choptank River Heritage
2011 Choptank River Heritage Environmental Choptank River Heritage
2011 Choptank River Heritage Historic Sites Choptank River Heritage
2011 Choptank River Heritage NRHP (National Register of Historic Places) Choptank River Heritage
2010 Choptank River Heritage Watershed Choptank River Heritage
2010 United States Protected Areas (PAD-US 1.1 (CBI Edition)) Conservation Biology Institute
2006 Eastern Brook Trout Joint Venture Eastern Brook Trout Joint Venture
2014 Pennsylvania - small watersheds Eastern Pennsylvania Coalition for Abandoned Mine Reclamation
2000 Neshaminy Creek watershed conservation plan Heritage Conservancy
2012 Riparian Buffer Assessment Heritage Conservancy
2000 Riparian Buffers for Southeast Pennsylvania Heritage Conservancy
2007 Riparian Streams - Berks County Heritage Conservancy
2009 Keep Pennsylvania Beautiful - Illegal Dump Surveys - points Keep Pennsylvania Beautiful
2010 Keep Pennsylvania Beautiful - Illegal Dump Surveys - points Keep Pennsylvania Beautiful
2011 Keep Pennsylvania Beautiful - Illegal Dump Surveys - points Keep Pennsylvania Beautiful
2015 Upper Delaware Scenic & Recreational River (UPDE) - Boundary National Park Service
2015 Upper Delaware Scenic & Recreational River (UPDE) - Land National Park Service
2015 Upper Delaware Scenic & Recreational River (UPDE) - Water National Park Service
2010 Aquatic Resources Combined - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Aquatic Resources Combined - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Aquatic Resources Group Natural Lands Trust
2010 Bird Habitat - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Bird Habitat - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Birds Habitat Natural Lands Trust
2006 Conservation Resources Natural Lands Trust
2006 Contiguous Grasslands Natural Lands Trust
2006 Contiguous Scrub Transitional Natural Lands Trust
2006 Fish Habitat Natural Lands Trust
2010 Fish Habitat - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Fish Habitat - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Floodplains Natural Lands Trust
2010 Floodplains - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Floodplains - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Forested Water Quality Natural Lands Trust
2010 Forested Water Quality - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Forested Water Quality - High Allegheny Plateau Ecoregion Natural Lands Trust
2010 Grasslands - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Grasslands - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Headwater Protection Natural Lands Trust
2010 Headwaters - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Headwaters - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Herp Aquatic Habitat Natural Lands Trust
2010 Herp Aquatic Habitat - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Herp Aquatic Habitat - High Allegheny Plateau Ecoregion Natural Lands Trust
2010 Herp Terrestrial Habitat - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Herp Terrestrial Habitat - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Herps Terrestrial Habitat Natural Lands Trust
2006 Hydric Soils Natural Lands Trust
2010 Hydric Soils - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Hydric Soils - High Allegheny Plateau Ecoregion Natural Lands Trust
2010 Impervious Change - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Impervious Change - High Allegheny Plateau Ecoregion Natural Lands Trust
2010 Impervious Cover - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Impervious Cover - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Impervious Cover Change 1985-2000 Natural Lands Trust
2006 Impervious Cover year 1985 Natural Lands Trust
2006 Impervious Cover year 2000 Natural Lands Trust
2010 Important Bird Areas - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Important Bird Areas - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Important Bird Areas for Pennsylvania Natural Lands Trust
2006 Important Mammal Areas Natural Lands Trust
2010 Important Mammal Areas - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Important Mammal Areas - High Allegheny Plateau Ecoregion Natural Lands Trust
2010 Interior Forest - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Interior Forest - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Interior Forest Habitat Natural Lands Trust
2010 Mammal Habitat - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Mammal Habitat - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Mammals Habitat Natural Lands Trust
2006 National Wetlands Inventory - SE Pennsylvania Natural Lands Trust
2010 Natural Vegetation - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Natural Vegetation - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Natural Vegetation Habitat Natural Lands Trust
2006 Rarity Group Natural Lands Trust
2006 Riparian Buffer Quality Natural Lands Trust
2010 Riparian Buffer Quality - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Riparian Buffer Quality - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Slopes Natural Lands Trust
2010 Slopes - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Slopes - High Allegheny Plateau Ecoregion Natural Lands Trust
2010 Terrestrial Resources Combined - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Terrestrial Resources Combined - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Terrestrial Resources Group Natural Lands Trust
2010 Transitional Vegetation - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Transitional Vegetation - High Allegheny Plateau Ecoregion Natural Lands Trust
2010 Water Quality - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Water Quality - High Allegheny Plateau Ecoregion Natural Lands Trust
2006 Water Quality 303d 305b Natural Lands Trust
2010 Wetlands NWI - Central Appalachian Forest Ecoregion Natural Lands Trust
2010 Wetlands NWI - High Allegheny Plateau Ecoregion Natural Lands Trust
2015 Delaware River Watershed Initiative - Soils Open Space Institute
2006 Delaware Estuary Boundary Partnership for the Delaware Estuary
2004 Protected Lands Inventory: Agricultural Easements The Conservation Fund
2004 Protected Lands Inventory: Federal Land The Conservation Fund
2004 Protected Lands Inventory: Nonprofit and Private Lands The Conservation Fund
2010 Aerial Photo Color 2003-2006 (cached mapservice) The Pennsylvania State University
1996 Agricultural security areas The Pennsylvania State University
2012 Bear Harvest by County 2003 - 2012 The Pennsylvania State University
2010 Biofuel Feedstock Potential in the Chesapeake Bay- Abandoned Cropland The Pennsylvania State University
2010 Biofuel Feedstock Potential in the Chesapeake Bay- Current Cropland The Pennsylvania State University
1996 Chesapeake Bay basin major watersheds The Pennsylvania State University
1996 Chesapeake Bay region state boundaries The Pennsylvania State University
2010 Deer Harvest by County 2003 The Pennsylvania State University
2012 Deer Harvest by Wildlife Management Units 2004 - 2012 The Pennsylvania State University
1996 Floodplains of Pennsylvania The Pennsylvania State University
1985 Fractional Vegetation Cover for Northeast Pennsylvania, 1985 The Pennsylvania State University
2000 Fractional Vegetation Cover for Northeast Pennsylvania, 2000 The Pennsylvania State University
1985 Fractional Vegetation Cover for Northwest Pennsylvania, 1985 The Pennsylvania State University
2000 Fractional Vegetation Cover for Northwest Pennsylvania, 2000 The Pennsylvania State University
1985 Fractional Vegetation Cover for Southeast Pennsylvania, 1985 The Pennsylvania State University
2000 Fractional Vegetation Cover for Southeast Pennsylvania, 2000 The Pennsylvania State University
1985 Fractional Vegetation Cover for Southwest Pennsylvania, 1985 The Pennsylvania State University
2000 Fractional Vegetation Cover for Southwest Pennsylvania, 2000 The Pennsylvania State University
1985 Impervious surface area for Northeast Pennsylvania, 1985 The Pennsylvania State University
2000 Impervious surface area for Northeast Pennsylvania, 2000 The Pennsylvania State University
1985 Impervious surface area for Northwest Pennsylvania, 1985 The Pennsylvania State University
2000 Impervious surface area for Northwest Pennsylvania, 2000 The Pennsylvania State University
1985 Impervious surface area for Southeast Pennsylvania, 1985 The Pennsylvania State University
2000 Impervious surface area for Southeast Pennsylvania, 2000 The Pennsylvania State University
2000 Impervious surface area for Southwest Pennsylvania The Pennsylvania State University
1985 Impervious surface area for Southwest Pennsylvania, 1985 The Pennsylvania State University
2012 Lake Erie Watershed - Erie PA, Impervious Surfaces Mapping The Pennsylvania State University
2012 Lake Erie Watershed 2012 Lidar - 16 bit The Pennsylvania State University
2012 Lake Erie Watershed 2012 Lidar - 32 bit The Pennsylvania State University
2012 Lake Erie Watershed 2012 Orthoimagery - CIR The Pennsylvania State University
2012 Lake Erie Watershed 2012 Orthoimagery - RGB The Pennsylvania State University
2017 Lake Erie Watershed 2015 Orthoimagery - CIR The Pennsylvania State University
2017 Lake Erie Watershed 2015 Orthoimagery - RGB The Pennsylvania State University
2012 Lake Erie Watershed Imagery 2012 - Tile Index The Pennsylvania State University
2017 Lake Erie Watershed Imagery 2015 - Tile Index The Pennsylvania State University
2017 Lake Erie Watershed LiDAR 2015 - DEM The Pennsylvania State University
2017 Lake Erie Watershed LiDAR 2015 - hydro breaklines The Pennsylvania State University
2017 Lake Erie Watershed LiDAR 2015 - intensity images The Pennsylvania State University
2017 Lake Erie Watershed LiDAR 2015 - las The Pennsylvania State University
2012 Lake Erie Watershed Lidar LAS 2012 - Tile Index The Pennsylvania State University
1996 Landmarks in Pennsylvania The Pennsylvania State University
1996 National Fish Hatcheries in Pennsylvania The Pennsylvania State University
1996 National forests in Pennsylvania The Pennsylvania State University
1996 National parks in Pennsylvania The Pennsylvania State University
1996 National Wildlife Preserves in Pennsylvania The Pennsylvania State University
1998 Networked streams of Pennsylvania The Pennsylvania State University
1998 PA Explorer: Terrabyte Image The Pennsylvania State University
2016 Penn State Altoona - Buildings The Pennsylvania State University
2016 Penn State Altoona - Parking The Pennsylvania State University
2016 Penn State Altoona - Parking Stripes The Pennsylvania State University
2016 Penn State Altoona - Roads major The Pennsylvania State University
2016 Penn State Altoona - Roads minor The Pennsylvania State University
2016 Penn State Altoona - Roads unpaved The Pennsylvania State University
2016 Penn State Altoona - Sidewalks The Pennsylvania State University
2017 Penn State Campus - Recreation Areas (line) The Pennsylvania State University
2017 Penn State Campus - Recreation Areas (polygon) The Pennsylvania State University
2017 Penn State Campus - Boundary The Pennsylvania State University
2017 Penn State Campus - Buildings The Pennsylvania State University
2017 Penn State Campus - Crosswalks (line) The Pennsylvania State University
2017 Penn State Campus - Crosswalks (polygon) The Pennsylvania State University
2017 Penn State Campus - Major Roads The Pennsylvania State University
2017 Penn State Campus - Minor Roads The Pennsylvania State University
2017 Penn State Campus - Parking Spot Stripes The Pennsylvania State University
2017 Penn State Campus - Parking Spots The Pennsylvania State University
2017 Penn State Campus - Paved Areas The Pennsylvania State University
2017 Penn State Campus - Planting Beds The Pennsylvania State University
2017 Penn State Campus - Sidewalks The Pennsylvania State University
2017 Penn State Campus - Unpaved Roads The Pennsylvania State University
2017 Penn State Campus - Walls The Pennsylvania State University
2017 Penn State Campus Imagery - SID Mosaics 2017 The Pennsylvania State University
2016 Penn State Campus Imagery - High Level Tile Index The Pennsylvania State University
2016 Penn State Campus Imagery - Low Level Tile Index The Pennsylvania State University
2014 Penn State Campus Imagery 2012 The Pennsylvania State University
2015 Penn State Campus Imagery 2015 The Pennsylvania State University
2017 Penn State Campus Imagery 2017 The Pennsylvania State University
2016 Penn State Campus LiDAR - DEM The Pennsylvania State University
2017 Penn State Campus LiDAR - DEM 2017 The Pennsylvania State University
2017 Penn State Campus LiDAR - las 2017 The Pennsylvania State University
2016 Penn State Campus LiDAR - tile Index The Pennsylvania State University
2016 Penn State Erie (Behrend) - Buildings The Pennsylvania State University
2016 Penn State Erie (Behrend) - Parking The Pennsylvania State University
2016 Penn State Erie (Behrend) - Parking Stripes The Pennsylvania State University
2016 Penn State Erie (Behrend) - Roads major The Pennsylvania State University
2016 Penn State Erie (Behrend) - Roads minor The Pennsylvania State University
2016 Penn State Erie (Behrend) - Roads unpaved The Pennsylvania State University
2016 Penn State Erie (Behrend) - Sidewalks The Pennsylvania State University
2004 PennPilot (Historical Aerial Photo Library) The Pennsylvania State University
1998 Pennsylvania - 104 state water plan watersheds The Pennsylvania State University
1997 Pennsylvania - small watersheds The Pennsylvania State University
2003 Pennsylvania 3.75-minute quarter quadrangle boundary The Pennsylvania State University
1996 Pennsylvania active railroads The Pennsylvania State University
1996 Pennsylvania boundaries of exceptional value watersheds The Pennsylvania State University
2004 Pennsylvania Breeding Bird Atlas 2 - Grid The Pennsylvania State University
2004 Pennsylvania Breeding Bird Atlas 2 - Regions The Pennsylvania State University
2004 Pennsylvania Breeding Bird Atlas 2 - Survey Points The Pennsylvania State University
1996 Pennsylvania coal mined areas The Pennsylvania State University
1996 Pennsylvania coastal floodplains The Pennsylvania State University
1996 Pennsylvania ecoregions The Pennsylvania State University
2000 Pennsylvania Gap analysis program, Avian habitat models -30meter The Pennsylvania State University
2000 Pennsylvania Gap analysis program, Avian habitat models -90meter The Pennsylvania State University
2000 Pennsylvania Gap analysis program, Fish habitat models -90meter The Pennsylvania State University
2000 Pennsylvania Gap analysis program, Herpetilie habitat models -30meter The Pennsylvania State University
2000 Pennsylvania Gap analysis program, Herpetilie habitat models -90meter The Pennsylvania State University
2000 Pennsylvania Gap analysis program, Mammal habitat models -30meter The Pennsylvania State University
2000 Pennsylvania Gap analysis program, Mammal habitat models -90meter The Pennsylvania State University
1999 Pennsylvania GAP stewardship The Pennsylvania State University
1996 Pennsylvania inactive railroads The Pennsylvania State University
2000 Pennsylvania Land Cover, 2000 The Pennsylvania State University
1998 Pennsylvania Major River Basins The Pennsylvania State University
1996 Pennsylvania major rivers The Pennsylvania State University
1996 Pennsylvania oil and gas fields The Pennsylvania State University
1996 Pennsylvania oil and gas wells The Pennsylvania State University
2009 Pennsylvania Public Schools in abandoned coal mine counties The Pennsylvania State University
1996 Pennsylvania scenic rivers The Pennsylvania State University
2009 PSU Forestland Management Office - Gates The Pennsylvania State University
2009 PSU Forestland Management Office - Roads The Pennsylvania State University
2009 PSU Forestland Management Office - Streams The Pennsylvania State University
2009 PSU Forestland Management Office - Trails The Pennsylvania State University
1996 Spring Creek Watershed 30-meter digital elevation model The Pennsylvania State University
1996 Spring Creek Watershed 7.5 minute quadrangle coverage The Pennsylvania State University
1996 Spring Creek Watershed basin area The Pennsylvania State University
1996 Spring Creek Watershed boundaries The Pennsylvania State University
1996 Spring Creek Watershed buffer boundaries The Pennsylvania State University
1996 Spring Creek Watershed minor civil divisions The Pennsylvania State University
1996 Spring Creek Watershed PCB and other pollution data The Pennsylvania State University
1996 Spring Creek Watershed roads The Pennsylvania State University
1996 Spring Creek Watershed soils The Pennsylvania State University
1996 Spring Creek Watershed STATSGO soil coverage The Pennsylvania State University
1996 Spring Creek Watershed streams The Pennsylvania State University
1996 Spring Creek Watershed wetlands The Pennsylvania State University
2009 Stone Valley Forest Boundary The Pennsylvania State University
2010 Stone Valley Forest Map - Purple Lizard The Pennsylvania State University
2009 Stone Valley Recreation Area - Trails The Pennsylvania State University
2010 Turkey Harvest by Wildlife Management Units 2003 - 2009 The Pennsylvania State University
2012 Unpaved Roads of Pennsylvania The Pennsylvania State University
2014 Philadelphia County soils U S Department of Agriculture
2014 Forest Patch Classification, Delaware River Basin, Northern Section, 2010-2011 University of Vermont Spatial Analysis Laboratory
2014 Forest Type Classification, 2010-2011, Delaware River Basin, Northern Section University of Vermont Spatial Analysis Laboratory
2016 High-Resolution Land Cover Chesapeake Bay Watershed - Delaware University of Vermont Spatial Analysis Laboratory
2016 High-Resolution Land Cover Chesapeake Bay Watershed - Baywide Dataset University of Vermont Spatial Analysis Laboratory
2016 High-Resolution Land Cover Chesapeake Bay Watershed - Maryland University of Vermont Spatial Analysis Laboratory
2016 High-Resolution Land Cover Chesapeake Bay Watershed - New York University of Vermont Spatial Analysis Laboratory
2016 High-Resolution Land Cover Chesapeake Bay Watershed - Washington, D.C. University of Vermont Spatial Analysis Laboratory
2016 High-Resolution Land Cover Chesapeake Bay Watershed - West Virgina University of Vermont Spatial Analysis Laboratory
2016 High-Resolution Land Cover, Commonwealth of Pennsylvania, Chesapeake Bay Watershed and Delaware River Basin, 2013 University of Vermont Spatial Analysis Laboratory
2008 Landcover - The Abingtons, Pennsylvania University of Vermont Spatial Analysis Laboratory
2007 Landcover - Baltimore County/metro area, Maryland University of Vermont Spatial Analysis Laboratory
2010 Landcover - Delaware River Basin NY and PA University of Vermont Spatial Analysis Laboratory
2010 Landcover - Lancaster County, Pennsylvania University of Vermont Spatial Analysis Laboratory
2011 Landcover - Prince Georges County, Maryland University of Vermont Spatial Analysis Laboratory
2006 Landcover - State College, Pennsylvania University of Vermont Spatial Analysis Laboratory
2014 Landcover - State of Delaware University of Vermont Spatial Analysis Laboratory
2013 Landcover - Tree Canopy Change, Washington DC, 2006 - 2011 University of Vermont Spatial Analysis Laboratory
2015 Pennsylvania Statewide High-Resolution Tree Canopy University of Vermont Spatial Analysis Laboratory
2004 Aquatic Community Classification Project Western Pennsylvania Conservancy
2004 Aquatic Mollusk sampling points Plummers Island Western Pennsylvania Conservancy
2004 Bioblitz zones for Erie Bluffs State Park Western Pennsylvania Conservancy
1993 Boundary of Conneaut Lake Western Pennsylvania Conservancy
2005 County natural heritage inventories Western Pennsylvania Conservancy
2004 Easements Western Pennsylvania Conservancy
2004 Historic projects Western Pennsylvania Conservancy
2005 Licking Creek riparian zones Western Pennsylvania Conservancy
2004 NHD Reach Pennsylvania Western Pennsylvania Conservancy
2004 Properties Western Pennsylvania Conservancy
2005 Snail Sampling points Plummers Island Western Pennsylvania Conservancy
2005 Tonoloway Creek riparian zones Western Pennsylvania Conservancy
2004 WPC 4th Order Streams Western Pennsylvania Conservancy
2004 WPC 5th Order Streams Western Pennsylvania Conservancy
2004 WPC aquatic sampling locations Western Pennsylvania Conservancy
2004 WPC Drainage area polygons for each RF3 river reach Western Pennsylvania Conservancy
2004 WPC HUC12 (includes percentage land-use) Western Pennsylvania Conservancy
2004 WPC non-protected sites Western Pennsylvania Conservancy
2004 WPC RF3 river reaches (includes percentage land-use) Western Pennsylvania Conservancy