Name: Penn State University Park_Centre County PA 1949 Aerial Photos
Display Field: FileName
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: These aerial images were obtained from 9"x9" film roll. The film was gifted to the Donald W. Hamer Center for Maps and Geospatial Information in 2021. These photos of the Centre Region are at a 1”:9600’ scale. They were captured in April 1949. There are 177 scans at 800dpi. These scans provide partial coverage of Centre County, PA, including the Penn State University Park campus and surrounding towns. To generate approximate historic aerial photo center points – photos were aligned and georeferenced in three dimensions using Agisoft Metashape and using a minimum number of ground control points, typically between 5 and 12 depending on the size of the project. Estimates of each camera pose, including geographic coordinates, were then exported to create a center point index for the collection. This center point index is intended to facilitate discovery and access, but not for research purposes. Historic aerial photograph tile indexes were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information in ESRI ArcGIS Pro. Each tile Index is based on the collection’s center point index. Photo tile size and rotation were estimated using sample georeferenced photos.
Description: The aerial photos were captured in the Spring 2001 by LR Kimball Aerial Photography for Cambria County. These photos were given to the Donald W. Hamer Center for Maps and Geospatial Information in 2017. The 1414 photos were flown at four different scales (1:500, 1:600, 1:1000, 1:2000) with varied coverage areas of Cambria County. These were scanned at 800dpi on an Epson Expression 11000 scanner by the Donald W. Hamer Center for Maps and Geospatial Information staff. This collection lacked an index. Approximate historic aerial photo center points were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information (https://libraries.psu.edu/maps). Photos were aligned and georeferenced in three dimensions using Agisoft Metashape using a minimum number of ground control points, typically between 5 and 12 depending on the size of the project. Estimates of each camera pose, including geographic coordinates, were then exported as a center point index to the historic aerial photography collection. This center point index is intended to facilitate discovery and access, but not for research purposes. Where photography collections facilitated the generation of high-quality seamless mosaics, these were produced to common research standards and made available along with center point indexes. Please use orthomosaics for measurement, comparison with imagery of other time-periods and other common tasks performed in a geographic information system (GIS). For more information on the methods used to generate center point indexes, orthomosaics, and/or to cite this work please see the below reference: Nathan B. Piekielek, Grace Brittany Waltemate and Karen Schuckman (2022) Evaluating Software Tools to Orthorectify Archival Aerial Photographs, Journal of Map and Geography Libraries, 18:3, 209-229, DOI: 10.1080/15420353.2023.2219257. Historic aerial photograph tile indexes were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information in ESRI ArcGIS Pro. Each tile Index is based on the collection’s center point index. Photo tile size and rotation were estimated using sample georeferenced photos.
Name: UniversityPark_1985 Aerial_Photographs - tile index
Display Field: PhotoID
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: These historic aerial photographs were captured in Spring 1985. These 235 photos were given to the Donald W. Hamer Center for Maps and Geospatial Information by the Penn State Office of the Physical Plant in 2017. University Park 1985 is a portion of the Penn State University Commonwealth and University Park Campuses 1985-1986 Aerial Photos collection. The original contractor for this collection was Eastern Mapping Co. An index of the location of the flight lines is included for each site. Approximate historic aerial photo center points were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information (https://libraries.psu.edu/maps). Photos were aligned and georeferenced in three dimensions using Agisoft Metashape using a minimum number of ground control points, typically between 5 and 12 depending on the size of the project. Estimates of each camera pose, including geographic coordinates, were then exported as a center point index to the historic aerial photography collection. This center point index is intended to facilitate discovery and access, but not for research purposes.
Name: Rock_Springs_1985 Aerial_Photographs - tile index
Display Field: FileName
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: These historic aerial photographs were captured in Spring 1985. These 47 photos were given to the Donald W. Hamer Center for Maps and Geospatial Information by the Penn State Office of the Physical Plant in 2017. Rock Springs 1985 is a portion of the Penn State University Commonwealth and University Park Campuses 1985-1986 Aerial Photos collection. The original contractor for this collection was Eastern Mapping Co. An index of the location of the flight lines is included for each site. Approximate historic aerial photo center points were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information (https://libraries.psu.edu/maps). Photos were aligned and georeferenced in three dimensions using Agisoft Metashape using a minimum number of ground control points, typically between 5 and 12 depending on the size of the project. Estimates of each camera pose, including geographic coordinates, were then exported as a center point index to the historic aerial photography collection. This center point index is intended to facilitate discovery and access, but not for research purposes. Historic aerial photograph tile indexes were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information in ESRI ArcGIS Pro. Each tile Index is based on the collection’s center point index. Photo tile size and rotation were estimated using sample georeferenced photos.
Name: State_College_PA_1995Aerial_Photographs - tile index
Display Field: FileName
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: The historic aerial photos were captured in the Spring 1995. These photos were given to the Donald W. Hamer Center for Maps and Geospatial Information in 2015 by the Penn State Office of the Physical Plant. The 213 photos were flown at a 1"=300' scale covering State College, PA. These were scanned at 800dpi on an Epson Expression 11000 scanner by the Donald W. Hamer Center for Maps and Geospatial Information staff. The original contractor for these photos was Photogrammetric Data Services Inc. Historic aerial photograph tile indexes were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information in ESRI ArcGIS Pro. Each tile Index is based on the collection’s center point index. Photo tile size and rotation were estimated using sample georeferenced photos.
Name: Toftrees_1997 Aerial_Photographs - tile index
Display Field: FileName
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: The aerial photos were captured in the Spring 1997. These photos were given to the Donald W. Hamer Center for Maps and Geospatial Information in 2015 by the Penn State Office of the Physical Plant. The 33 photos were flown at a 1":2400' scale covering Toftrees development in Patton Township, as part of the State College PA region. These were scanned at 800dpi on an Epson Expression 11000 scanner by the Donald W. Hamer Center for Maps and Geospatial Information staff. The original contractor of these images was Land & Mapping Services. Historic aerial photograph tile indexes were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information in ESRI ArcGIS Pro. Each tile Index is based on the collection’s center point index. Photo tile size and rotation were estimated using sample georeferenced photos.
Name: Susquehanna_River_Basin_1972 Aerial_Photographs - tile index
Display Field: FileName
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: This collection of historic aerial photographs was taken in response to Hurricane Agnes in 1972 for the Susquehanna River Basin Commission (SRBC). During the major flood caused by Hurricane Agnes in June 1972, Erdman and Anthony Consulting Engineers captured aerial photographs of the Susquehanna River at Harrisburg, Conestoga Creek, Conodoguinet Creek, Swatara Creek, and the Juniata River. This collection includes 336 photos, and does not have a uniform scale. Center point index files were created through a georeferencing process. This collection was given to the Donald W. Hamer Center for Maps and Geospatial Information by the PA Department of Conservation and Natural Resources, Bureau of Geological Survey Library. The photos were scanned at 800 dpi on an Epson Expression 11000 scanner by the Donald W. Hamer Center for Maps and Geospatial Information. "Cargill" refers to a family restaurant called Cargill's Restaurant near McVeytown, PA that was in business during the 1960s and 1970s. The mission's flight lines begin/end near McVeytown, where Cargill's was likely located.
Name: Susquehanna_River_Basin_1973_1975 Aerial_Photographs - tile index
Display Field: FileName
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: These historic aerial photographs were taken between 1973 and 1975 for the Susquehanna River Basin Commission (SRBC) by multiple subcontractors, including: the Aero Service Corporation, the Air Survey Corporation, Berger Associates, Erdman and Anthony Consulting Engineers, L. Robert Kimball Consulting Engineers, Michael Baker Jr., Inc., and Quinn and Associates. These photos were taken in response to Hurricane Agnes, which occurred in June 1972. This collection includes 4,249 photos. Most photos have a scale of 1:12,000 or 1”:1140’. Center point index files were created through a georeferencing process. This collection contains missions/locations from the following counties in Pennsylvania: Lancaster, York, Dauphin, Lebanon, Cumberland, Perry, Juniata, Mifflin, Huntingdon, Schuylkill, Northumberland, Snyder, Union, Lycoming, Clinton, Montour, Columbia, Luzerne, Lackawanna, Wyoming, Bradford, and Tioga. This collection also contains missions/locations from Broome, Tioga, Chemung, Steuben, and Allegany counties in New York and Harford and Cecil counties in Maryland. Some other locations in this collection include: the Susquehanna River, the West Branch Susquehanna River, Three Mile Island, Conowingo Dam, the Wyoming Valley, the Chemung River, the Juniata River, the Canisteo River, and the Lackawanna River. This collection was given to the Donald W. Hamer Center for Maps and Geospatial Information by the PA Department of Conservation and Natural Resources, Bureau of Geological Survey Library. The photos were scanned at 800 dpi on an Epson Expression 11000 scanner by the Donald W. Hamer Center for Maps and Geospatial Information.
Description: This collection of historic aerial photographs contains two missions taken in 1977 and 1978, respectively. The 1977 mission was captured by L. Robert Kimball, Consulting Engineers, Ebensburg, Pennsylvania at 1”=500’ scale and contains 331 photos. The 1978 mission was captured on October 31st, 1978 at a scale of 1:24,000 and contains 84 photos. This collection was given to the Donald W. Hamer Center for Maps and Geospatial Information by the PA Department of Conservation and Natural Resources, Bureau of Geological Survey Library. The photos were scanned at 800 dpi on an Epson Expression 11000 scanner by the Donald W. Hamer Center for Maps and Geospatial Information. Approximate historic aerial photo center points were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information (https://libraries.psu.edu/maps). Photos were aligned and georeferenced in three dimensions using Agisoft Metashape using a minimum number of ground control points, typically between 5 and 12 depending on the size of the project. Estimates of each camera pose, including geographic coordinates, were then exported as a center point index to the historic aerial photography collection. This center point index is intended to facilitate discovery and access, but not for research purposes. Where photography collections facilitated the generation of high-quality seamless mosaics, these were produced to common research standards and made available along with center point indexes. Please use orthomosaics for measurement, comparison with imagery of other time-periods and other common tasks performed in a geographic information system (GIS). For more information on the methods used to generate center point indexes, orthomosaics, and/or to cite this work please see the following reference: Nathan B. Piekielek, Grace Brittany Waltemate and Karen Schuckman (2022) Evaluating Software Tools to Orthorectify Archival Aerial Photographs, Journal of Map and Geography Libraries, 18:3, 209-229, DOI: 10.1080/15420353.2023.2219257
Description: This collection of historic aerial photographs was captured between April 18th, 1980 and March 28th, 1981 on various dates. The 304 photos in this collection cover areas in the following Pennsylvania counties: Allegheny, Armstrong, Beaver, Butler, Indiana, Washington, and Westmoreland. The scale of the photos is 1:80,000 with a focal length of 153.034mm. These photos were taken by Keystone Aerial Surveys, Inc. for the Southwestern Pennsylvania Regional Planning Commission (SPRPC). This collection was given to the Donald W. Hamer Center for Maps and Geospatial Information by the PA Department of Conservation and Natural Resources, Bureau of Geological Survey Library. The photos were scanned at 800 dpi on an Epson Expression 11000 scanner by the Donald W. Hamer Center for Maps and Geospatial Information. Historic aerial photograph tile indexes were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information in ESRI ArcGIS Pro. Each tile Index is based on the collection’s center point index. Photo tile size and rotation were estimated using sample georeferenced photos.
Name: Susquehanna_River_Basin_1991 Aerial_Photographs - tile index
Display Field: FileName
Type: Feature Layer
Geometry Type: esriGeometryPoint
Description: This collection of historic aerial photographs was taken in 1991 in response to a drought for the Susquehanna River Basin Commission (SRBC). This collection includes 1,327 photos. These photos are at a scale of 1:12,000. Center point index files were created through a georeferencing process. This collection contains missions/locations with the following coverage areas: length of the Susquehanna River from Binghamton, NY to Havre De Grace, MD (except a stretch of the river from Dauphin, PA to Columbia, PA), length of the West Branch Susquehanna River from Renovo, PA to Northumberland, PA, length of the Chemung River from Corning, NY to Sayre, PA, length of the Juniata River Raystown Branch from Saxton, PA to Mill Creek, PA, length of the Juniata River from Huntingdon, PA to Duncannon, PA, and the length of the Lackawanna River from Carbondale, PA to Pittston, PA. This collection was given to the Donald W. Hamer Center for Maps and Geospatial Information by the PA Department of Conservation and Natural Resources, Bureau of Geological Survey Library. The photos were scanned at 800 dpi on an Epson Expression 11000 scanner by the Donald W. Hamer Center for Maps and Geospatial Information.
Name: South_Beltway_1992 Aerial_Photographs - tile index
Display Field: FileName
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This collection of historic aerial photographs was captured between April 13th, 1992 and December 9th, 1992 on various dates. The 331 photos cover areas of Allegheny and Washington counties in Pennsylvania. The photos are at a scale of 1”=1,200’ with a focal length of 152.81mm. These photos were taken by Michael Baker Jr., Inc., for the Pennsylvania Turnpike Commission. This collection was given to the Donald W. Hamer Center for Maps and Geospatial Information by the PA Department of Conservation and Natural Resources, Bureau of Geological Survey Library. The photos were scanned at 800 dpi on an Epson Expression 11000 scanner by the Donald W. Hamer Center for Maps and Geospatial Information. Approximate historic aerial photo center points were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information (https://libraries.psu.edu/maps). Photos were aligned and georeferenced in three dimensions using Agisoft Metashape using a minimum number of ground control points, typically between 5 and 12 depending on the size of the project. Estimates of each camera pose, including geographic coordinates, were then exported as a center point index to the historic aerial photography collection. This center point index is intended to facilitate discovery and access, but not for research purposes. Where photography collections facilitated the generation of high-quality seamless mosaics, these were produced to common research standards and made available along with center point indexes. Please use orthomosaics for measurement, comparison with imagery of other time-periods and other common tasks performed in a geographic information system (GIS). For more information on the methods used to generate center point indexes, orthomosaics, and/or to cite this work please see the below reference: Nathan B. Piekielek, Grace Brittany Waltemate and Karen Schuckman (2022) Evaluating Software Tools to Orthorectify Archival Aerial Photographs, Journal of Map and Geography Libraries, 18:3, 209-229, DOI: 10.1080/15420353.2023.2219257. Historic aerial photograph tile indexes were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information in ESRI ArcGIS Pro. Each tile Index is based on the collection’s center point index. Photo tile size and rotation were estimated using sample georeferenced photos.
Name: Southeastern_Allegheny_County_PA_Rt51_1993 Aerial_Photographs - tile index
Display Field: FileName
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This collection of historic aerial photographs was captured on April 7th, 1993. The 177 photos cover areas of southeastern Allegheny County. The photos are at a scale of 1:14,400 with a focal length of 152.81mm. This collection was given to the Donald W. Hamer Center for Maps and Geospatial Information by the PA Department of Conservation and Natural Resources, Bureau of Geological Survey Library. The photos were scanned at 800 dpi on an Epson Expression 11000 scanner by the Donald W. Hamer Center for Maps and Geospatial Information. Approximate historic aerial photo center points were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information (https://libraries.psu.edu/maps). Photos were aligned and georeferenced in three dimensions using Agisoft Metashape using a minimum number of ground control points, typically between 5 and 12 depending on the size of the project. Estimates of each camera pose, including geographic coordinates, were then exported as a center point index to the historic aerial photography collection. This center point index is intended to facilitate discovery and access, but not for research purposes. Where photography collections facilitated the generation of high-quality seamless mosaics, these were produced to common research standards and made available along with center point indexes. Please use orthomosaics for measurement, comparison with imagery of other time-periods and other common tasks performed in a geographic information system (GIS). For more information on the methods used to generate center point indexes, orthomosaics, and/or to cite this work please see the below reference: Nathan B. Piekielek, Grace Brittany Waltemate and Karen Schuckman (2022) Evaluating Software Tools to Orthorectify Archival Aerial Photographs, Journal of Map and Geography Libraries, 18:3, 209-229, DOI: 10.1080/15420353.2023.2219257. Historic aerial photograph tile indexes were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information in ESRI ArcGIS Pro. Each tile Index is based on the collection’s center point index. Photo tile size and rotation were estimated using sample georeferenced photos.
Name: SPC_Project_2000_2001 Aerial_Photographs - tile index
Display Field: FileName
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This collection of historic aerial photographs was captured between March 18th, 2000 and April 25th, 2001 on various dates. The 6,449 photos cover Allegheny, Armstrong, Beaver, Butler, Fayette, Greene, Indiana, Washington, and Westmoreland counties in Pennsylvania. These aerial photos were taken by EarthData International for the Southwestern Pennsylvania Commission (SPC). The photos are at a scale of 1:14,400 with a focal length of 153.0mm. This collection was given to the Donald W. Hamer Center for Maps and Geospatial Information by the PA Department of Conservation and Natural Resources, Bureau of Geological Survey Library. The photos were scanned at 800 dpi on an Epson Expression 11000 scanner by the Donald W. Hamer Center for Maps and Geospatial Information. Eight historic aerial photograph index map sheets are included. A center point index obtained from an archived page of the SPC website, updated to include the scanned aerial photograph file names, is included. Historic aerial photograph tile indexes were generated by staff of the Donald W. Hamer Center for Maps and Geospatial Information in ESRI ArcGIS Pro. Each tile Index is based on the collection’s center point index. Photo tile size and rotation were estimated using sample georeferenced photos.