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Coastal and Marine Geology Program Internet Map Server:
Long Island Sound Estuary

USGS Coastal and Marine Geology Program
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Long Island Sound Internet Map Server

Map Server Description

GIS Data Catalog

LIS sidescan sonar mosaics

GIS Data Publications

Field Activities

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Long Island Sound Animation

Publications List

GIS Data Catalog

Below is a list of data available on the USGS Coastal and Marine Geology Program's Long Island Sound Internet Map Server. Data have been compiled from various published sources and most of the data are currently available on-line for viewing and download. Many data layers for the Long Island Sound Internet Map Server have been compiled by outside organizations contributing to USGS publications. Though some images have been converted to geographic for compilation within the Internet Map Server (IMS), the published images may be available in their original, published projected coordinate system. The specific projection and datum information of the published image is noted in the data layer description. The GIS data publications are currently available on-line for user access and downloads.

Please select a data category from the list below and expand the listing to review the available data layers.

Please Note: Metadata files will open in a new browser window.


Basemap: U.S. cities, U.S. urban areas, federal lands, water features, coastlines ...

Bathymetry Contours ...

Bathymetry - Shaded Relief Imagery ...

Benthic: benthic foraminiferal samples ...

Boundaries: survey areas, fed/state boundary ...

Chemistry: metals concentration, Total Organic Carbon ...

Coastal vulnerability: coastal vulnerability index, geomorphology, erosion

Cores: CERC, MMS

Geology: sedimentary environment, post-glacial sediments ...

Navigation: seismic tracklines ...

Sidescan Sonar Mosaics: USGS mosaics (1993-1997), NOAA

Surficial Sediment Samples: USGS East Coast Surficial Sediments, LIS Surficial Sediment Data ...