NJDEP GIS datasets are available for download as ArcGIS Shape files (some also in File Geodatabase format).
These files can be used with your GIS or can be viewed with a free GIS Data Viewer from
ESRI called ArcGIS Explorer.
Some older data files may not have a NJ State Plane feet projection file.
If the zip file does not contain a .prj file, please download the njsp83.prj file and rename
it to the filename in the zip. For example, the Head of Tide shapefile is called hot.shp.
In this case, please download, unzip, and rename the njsp83.prj file to hot.prj.