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NYS ITS GIS Program Office

Geographic Information Systems Clearinghouse

Digital Raster Quadrangles

1:24,000 Digital Raster Quadrangles

1:100,000 Digital Raster Quadrangles

1:250,000 Digital Raster Quadrangles

See CUGIR for Additional Coverages at 1:250,000 scale

snapshot image of quad maps

Click on any of the rectangles(quadrangles) on the map below to find out the quad name and quad code associated with each quadrangle. Each quadrangle has a link to a page with more information and download information.The Index by Quad Name table is also available for acessing the same information. The quadrangle index coverage (90 kb) is an index of the quadrangles (zipped ESRI shapefile format) available for download.

Please be aware that many of the images available are very large and may take some time to download, particularly if you are accessing the Web via a modem.

These files duplicate in digital form the map image that appears on the corresponding printed 1:24,000 scale map. The files are raster images composed of pixels, and are not vectorized for use as intelligent GIS layers. However, they are well suited for use as a backdrop to other GIS layers where they can be positionally registered with vector files and provide additional visual information or be used for on-screen, "heads-up" digitizing, as well as general display and plotting of the map image. The files may be used with a variety of UNIX and PC-based graphics, CAD, and GIS software packages.