Historical USGS Topographic Map Images of New Jersey
NJ Office of Information Technology (NJOIT), Office of Geographic Information Systems (OGIS)
This Open Geospatial Consortium (OGC) compliant Web Map Service (WMS) includes a mosaic of historical USGS topographic maps of New Jersey surveyed from 1881 to 1924. This product is to be used for reference purposes only. The original historical paper maps were distorted or damaged to varying degrees due to age and use. During visual testing, it appeared that spatial inaccuracies in the images exceed 200 feet in several locations. The digital product has not been corrected for distortion nor vertical displacement. Consequently, this product does not meet the National Standard for Spatial Data Accuracy (NSSDA). The mosaic was produced by scanning 15 minute (1:62,500 scale) historical USGS topographic paper maps at 600 dpi and saving them as Tagged Image File Format (TIFF) images. The scanned TIFFs have an approximate pixel resolution of 17 feet. The map images were georeferenced to a fishnet in their native coordinate system and then reprojected to NAD83 NJ State Plane coordinates for use in this service. In most client software, the default spatial reference system of the service will be Geographic Coordinates, WGS84.
The Milford 1913 and Bushkill 1924 map images were obtained from the USGS Delaware Basin Project website (http://mcmcweb.er.usgs.gov/de_river_basin/de_water_gap/data_list.html) because they were missing from the original historical map set. They were added to the mosaic to provide full coverage of New Jersey. A “fishnet” of 15 minute tiles was created to georeference the map images. The fishnet was created in the maps’ native coordinate system, Clarke 1866, and re-projected to New Jersey State Plane feet NAD83. The TIFFs were then georeferenced to the tiles and clipped to remove the collars (border areas of the maps), and reprojected to NAD83 NJ State Plane coordinates, U.S. Survey feet. The TIFFs were converted to JPEG2000 files to be used in the mosaic for the WMS.
Historical USGS topographic maps of New Jersey – created by the United States Geological Survey. Historical USGS topographic maps of New Jersey paper map set – provided by the Upper Raritan Watershed Association, Bedminster, New Jersey. Historical USGS topographic map images of New Jersey – scanned by the Rutgers University Environmental Digital Library, New Brunswick, New Jersey; scanning process managed by the New Jersey Department of Environmental Protection, Bureau of Geographic Informations Systems, Trenton, New Jersey; georeferenced by the New Jersey Office of Information Technology, Office of Geographic Information Systems, Trenton, New Jersey. The Milford 1913 and Bushkill 1924 map images were obtained from the USGS Delaware Basin Project website (http://mcmcweb.er.usgs.gov/de_river_basin/de_water_gap/data_list.html).
Horizontal Position Accuracy
The digital product has not been corrected for distortion nor vertical displacement. Consequently, this product does not meet the National Standard for Spatial Data Accuracy (NSSDA)
This map service is to be used for reference purposes only. The paper maps scanned to provide this map service were distorted or damaged to varying degrees due to age and use. This digital product has not been corrected for distortion or vertical displacement and does not meet the National Standard for Spatial Data Accuracy (NSSDA). Acknowledgement of the map service provider, State of New Jersey Office of Information Technology, Office of Geographic Information Systems (NJOIT-OGIS), as the source for data and map products derived from this map service, would be appreciated.
The State of New Jersey makes great effort to provide secure, accurate, and complete data and metadata. However, portions of the data and metadata may be incorrect or not current. Any errors or omissions should be reported for investigation. The State of New Jersey, its officers, employees or agents shall not be liable for damages or losses of any kind arising out of or in connection with the use or performance of data and metadata, including but not limited to, damages or losses caused by reliance upon the accuracy or timeliness of any such data and metadata, or damages incurred from the viewing, distributing, or copying of those materials. The data and metadata are provided “as is.” No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to the data and metadata, or its hyperlinks to other Internet resources. The State disclaims any duty or obligation either to maintain availability of or to update the data and metadata.
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