Digital Elevation Models (DEM) for Long Island and Surroundings.
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On this site you can download DEM's for 7.5' quadrangles for Long Island and immediate surroundings. They are self extracting zip files. Each DEM is about 10MB after unzipping. T These maps were originally downloaded from the Cornell University Geospatial Information Repository (CUGIR). CUGIR is an active online repository providing geospatial data and metadata for New York State. dlgv32 Pro is a free limited-feature version of the commercial software Global Mapper that can be downloaded at http://mcmcweb.er.usgs.gov/drc/dlgv32pro/ Another program for viewing DEM files is MicroDEM a very capable viewing and analyzing DEM tool. MicroDEM was developed by Peter Gauth of the US Naval Academy. The web site describing MicroDem and where you can download this program for free is at http://www.usna.edu/Users/oceano/pguth/website/microdemdown.htm There is a sharewareMac program for viewing DEM files (MacDEM) that can be downloaded at: http://www.treeswallow.com/macdem/ You may wish to visit GeoCommunity which has listings of programs that can be used for GIS or DEM viewing. The crude map below lists the quads by letter and number. |
The following table gives the names
and ID's for the quads.
You can download the self extracting zip files at the
links.
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SORTED BY QUAD ID |
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SORTED BY QUAD NAME |
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QUAD ID |
QUAD NAME |
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QUAD NAME |
QUAD ID |
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ORIENT |
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AMITYVILLE |
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PLUM ISLAND |
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BAY SHORE EAST |
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MATTITUCK HILLS |
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BAY SHORE WEST |
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SOUTHOLD |
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BAYVILLE |
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GREENPORT |
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BELLPORT |
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GARDINERS ISLAND WEST |
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BROOKLYN |
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GARDINERS ISLAND EAST |
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CENTRAL ISLIP |
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MONTAUK POINT |
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CENTRAL PARK |
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YONKERS |
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CONEY ISLAND |
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MOUNT VERNON |
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EAST HAMPTON |
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MAMARONECK |
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EASTPORT |
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BAYVILLE |
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FAR ROCKAWAY |
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LLOYD HARBOR |
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FLUSHING |
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NORTHPORT |
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FREEPORT |
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SAINT JAMES |
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GARDINERS ISLAND EAST |
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PORT JEFFERSON |
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GARDINERS ISLAND WEST |
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MIDDLE ISLAND |
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GREENLAWN |
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WADING RIVER |
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GREENPORT |
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RIVERHEAD |
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HICKSVILLE |
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MATTITUCK |
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HOWELLS POINT |
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SOUTHAMPTON |
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HUNTINGTON |
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SAG HARBOR |
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JAMAICA |
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EAST HAMPTON |
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JONES INLET |
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NAPEAGUE BEACH |
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LAWRENCE |
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CENTRAL PARK |
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LLOYD HARBOR |
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FLUSHING |
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LYNBROOK |
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SEA CLIFF |
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MAMARONECK |
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HICKSVILLE |
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MATTITUCK |
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HUNTINGTON |
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MATTITUCK HILLS |
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GREENLAWN |
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MIDDLE ISLAND |
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CENTRAL ISLIP |
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MONTAUK POINT |
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PATCHOGUE |
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MORICHES |
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BELLPORT |
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MOUNT VERNON |
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MORICHES |
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NAPEAGUE BEACH |
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EASTPORT |
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NORTHPORT |
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QUOGUE |
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ORIENT |
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SHINNECOCK INLET |
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PATCHOGUE |
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FREEPORT |
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PATTERSQUASH ISLAND |
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BROOKLYN |
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PLUM ISLAND |
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JAMAICA |
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PORT JEFFERSON |
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LYNBROOK |
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QUOGUE |
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AMITYVILLE |
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RIVERHEAD |
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BAY SHORE WEST |
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SAG HARBOR |
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BAY SHORE EAST |
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SAINT JAMES |
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SAYVILLE |
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SAYVILLE |
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HOWELLS POINT |
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SEA CLIFF |
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PATTERSQUASH ISLAND |
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SHINNECOCK INLET |
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THE NARROWS |
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SOUTHAMPTON |
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CONEY ISLAND |
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SOUTHOLD |
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FAR ROCKAWAY |
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THE NARROWS |
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LAWRENCE |
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WADING RIVER |
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JONES INLET |
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WEST GILGO BEACH |
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WEST GILGO BEACH |
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YONKERS |
If you have any questions or comments, please contact Gilbert N. Hanson.