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| Layer Name |
Date
Last
Updated1 |
Source
Map
Scale2 |
Data
Type |
Data
Description3 |
Data
Download4 |
|
|
|
Bathymetry Contours for Lakes (lines) |
|
24,000 |
Line |
|
|
|
|
Bathymetry Contours for Lakes (polygons) |
|
24,000 |
Polygon |
|
|
Bathymetric Contours in Meters for Long Island Sound |
|
24,000 |
Line |
|
|
|
Connecticut 20 Meter Contours |
|
100,000 |
Line |
|
|
|
|
Connecticut 2 Feet Contours |
|
100,000 |
Line |
|
|
|
Connecticut 10 Feet Contours |
|
100,000 |
Line |
|
|
Connecticut 20 Feet Contours |
|
100,000 |
Line |
|
|
Connecticut 50 Feet Contours |
|
100,000 |
Line |
|
|
Connecticut 100 Feet Contours |
|
100,000 |
Line |
|
|
|
|
Connecticut Eelgrass Beds 2002 Field Data |
|
24,000 |
Point |
|
|
|
|
Connecticut Eelgrass Beds 2002 Poly |
|
24,000 |
Polygon |
|
|
Connecticut Eelgrass Beds 2006 Field Data |
|
24,000 |
Point |
|
|
|
Connectcut Eelgrass Beds 2006 Poly |
|
24,000 |
Polygon |
|
|
Historic Eelgrass Points |
|
24,000 |
Point |
|
|
|
Historic Eelgrass Beds |
|
24,000 |
Polygon |
|
|
Observed Eelgrass Beds |
|
24,000 |
Polygon |
|
|
|
Potential Eelgrass Beds |
|
24,000 |
Polygon |
|
|
Eelgrass Sample Points |
|
24,000 |
Point |
|
|
Migratory Waterfowl |
|
24,000 |
Polygon |
|
|
|
Phragmites 1968 |
|
24,000 |
Polygon |
|
|
|
Phragmites 1994 |
|
24,000 |
Polygon |
|
|
|
Tidal Wetlands, 1970's |
|
24,000 |
Polygon |
|
|
|
Tidal Wetlands, 1990's |
|
24,000 |
Polygon |
|
Coastal Resource Management |
|
Coastal Area |
|
24,000 |
Polygon |
|
|
|
|
Coastal Boundary |
|
24,000 |
Polygon |
|
|
|
Connecticut Coastal 2002 Environmental Sensitivity Index Mapping (Lines) |
|
24,000 |
Line |
|
|
|
Connecticut Coastal 2002 Environmental Sensitivity Index Mapping (Polygons) |
|
24,000 |
Polygon |
|
|
Shellfish Area Classification Line |
4/19/2007 |
24,000 |
Line |
|
|
|
Shellfish Area Classification Poly |
24,000 |
Polygon |
|
|
Shellfish Area Classification - Marina |
|
24,000 |
Point |
|
|
Shellfish Area Classification - Marker |
|
24,000 |
Point |
|
|
Shellfish Area Classification - Town Line |
|
24,000 |
Line |
|
|
Shellfish Area Classification - Town Polygon |
|
24,000 |
Polygon |
|
|
Connecticut Managed Shellfish Beds |
|
24,000 |
Polygon |
|
|
|
|
|
Worst Case Hurricane Surge Inundation for CT (replaces 2003 FEMA SLOSH data) |
|
Unknown |
Polygon |
|
|
|
| National Flood Hazard Data |
Visit the FEMA Map Service Center |
|
|
|
Connecticut Bedrock Geology Line |
|
50,000 |
Line |
|
|
|
|
Connecticut Bedrock Geology Polygon |
|
50,000 |
Polygon |
|
|
Connecticut Erosion Susceptibility |
|
24,000 |
Polygon |
|
|
|
Connecticut Erosion Sites |
|
24,000 |
Point |
|
|
Connecticut Quaternary Geology and Surficial Materials Line |
|
24,000 |
Line |
|
|
|
Connecticut Quaternary Geology and Surficial Materials Polygon |
|
24,000 |
Polygon |
|
|
Connecticut Quaternary Geology Line |
|
24,000 |
Line |
|
|
Connecticut Quaternary Geology Point |
|
24,000 |
Point |
|
|
Connecticut Surficial Material Line |
|
24,000 |
Line |
|
|
|
Connecticut Surficial Material Polygon |
|
24,000 |
Polygon |
|
|
Connecticut Surficial Material Aquifer Texture |
|
24,000 |
Polygon |
|
|
|
Thickness of Glacial Sediments in Connecticut and the Long Island Sound Basin Line |
|
125,000 |
Line |
|
|
|
Thickness of Glacial Sediments in Connecticut and the Long Island Sound Basin Polygon |
|
125,000 |
Polygon |
|
|
|
|
Natural Diversity Database Areas |
7/1/2009 |
24,000 |
Polygon |
|
|
|
|
|
|
Connecticut Hydrography Line |
|
24,000 |
Line |
|
|
|
|
Connecticut Hydrography Polygon |
|
24,000 |
Polygon |
|
|
Connecticut Named Waterbody Line |
|
24,000 |
Line |
|
|
|
Connecticut Named Waterbody Polygon |
|
24,000 |
Polygon |
|
|
Connecticut Waterbody Line |
|
24,000 |
Line |
|
|
|
Connecticut Waterbody Polygon |
|
24,000 |
Polygon |
|
|
Channels, Basins and Anchorages |
|
24,000 |
Polygon |
|
|
|
Connecticut Dams |
|
24,000 |
Line |
|
|
|
Salt Water Limit |
|
24,000 |
Line |
|
|
| National Hydrography Dataset |
Visit the USGS National Hydrography Dataset Home Page |
Index - Aerial Photo Index |
|
Connecticut 1965 Aerial Photo Center Point Index |
|
24,000 |
Point |
|
|
|
|
Connecticut 1965 Aerial Photo Upper Left Corner Index |
|
24,000 |
Point |
|
|
|
Connecticut 2000 Aerial Photo Center Point Index |
|
24,000 |
Point |
|
|
|
Connecticut 2004 Aerial Photo Center Point Index |
|
24,000 |
Point |
|
|
|
Connecticut 1980 Coastal Photography Point Index |
|
24,000 |
Point |
|
|
|
Connecticut 1980 Coastal Photography Tile Index |
|
24,000 |
Polygon |
|
|
|
Connecticut 2005 Coastal Photography Point Index |
|
24,000 |
Point |
|
|
|
|
|
Connecticut USGS 7.5 Minute Quadrangle Index |
|
24,000 |
Polygon |
|
|
|
|
Connecticut USGS 7.5 Minute Quadrangle Index (NAD83 Area) |
|
24,000 |
Polygon |
|
|
|
Connecticut USGS 7.5 Minute Quadrangle Index (NAD83 Area) Envelope |
|
24,000 |
Polygon |
|
|
|
Connecticut USGS 3.75 Minute Quarter Quadrangle Index (NAD83 Area) |
|
24,000 |
Polygon |
|
|
|
UTM Zone Index |
|
24,000 |
Polygon |
|
|
|
ESRI Mapbook Major Basin Index |
|
24,000 |
Polygon |
|
|
|
ESRI Mapbook Regional Basin Index |
|
24,000 |
Polygon |
|
|
|
ESRI Mapbook Subregional Basin Index |
|
24,000 |
Polygon |
|
|
|
ESRI Mapbook Town Index |
|
24,000 |
Polygon |
|
|
|
ESRI Mapbook 7.5 Minute Quadrangle Index |
|
24,000 |
Polygon |
|
|
Orthophotography and Topos |
|
Connecticut 1990 Orthophoto |
|
|
Raster |
|
|
|
Connecticut 2004 Orthophoto |
|
|
Raster |
|
|
Connecticut 2006 Color NAIP |
|
|
Raster |
|
|
Connecticut 2008 (4 Band) Color and Color Infrared NAIP |
|
|
Raster |
|
|
Connecticut 2008 Color Urban Area |
|
|
Raster |
|
|
Coastal CT 2004 Color Orthphoto |
|
|
Raster |
|
|
Coastal CT 2004 Color Infrared Orthophoto |
|
|
Raster |
|
|
Coastal CT 2005 Color Infrared Orthophoto |
|
|
Raster |
|
|
Connecticut USGS Topographic Quad Maps |
|
24,000 |
Raster |
|
|
|
|
Connecticut 1990 Orthophoto Tile Index |
|
24,000 |
Polygon |
|
|
|
|
Connecticut 1990 Orthophoto Tile Index By Town |
|
24,000 |
Polygon |
|
|
|
Connecticut 2004 Orthophoto Center Point Index |
|
24,000 |
Point |
|
|
|
Connecticut 2004 Orthophoto Tile Index |
|
24,000 |
Polygon |
|
|
|
Connecticut 2004 Orthophoto Tile Index by Town |
|
24,000 |
Polygon |
|
|
|
Connecticut 2005 Coastal Orthophoto Tile Index |
|
24,000 |
Polygon |
|
|
Natural Resources Management |
|
Aquifer Protection Areas |
10/29/2009 |
24,000 |
Polygon |
|
|
|
|
Connecticut 305B Assessed Estuary 2006 |
|
24,000 |
Polygon |
|
|
|
Connecticut 305B Assessed Lake 2006 |
|
24,000 |
Polygon |
|
|
|
Connecticut 305B Assessed River 2006 |
|
24,000 |
Line |
|
|
|
Connecticut 305B Assessed Estuary 2008 |
|
24,000 |
Polygon |
|
|
|
Connecticut 305B Assessed Lake 2008 |
|
24,000 |
Polygon |
|
|
|
Connecticut 305B Assessed River 2008 |
|
24,000 |
Line |
|
|
|
Fisheries Stream Survey Points |
|
24,000 |
Point |
|
|
|
Ground Water Quality Classifications Polygon |
9/22/2009 |
24,000 |
Polygon |
|
|
|
Surface Water Quality Classifications Line |
11/1/2006 |
24,000 |
Line |
|
|
Surface Water Quality Classifications Polygon |
|
24,000 |
Polygon |
|
|
|
|
Connecticut Geographic Names |
|
24,000 |
Point |
|
|
|
|
Connecticut Geographic Name Table |
|
|
Table |
|
|
Connecticut Other Geographic Name Table |
|
|
Table |
|
|
Connecticut Town Lookup Table for Geographic Names |
|
|
Table |
|
|
Connecticut Geographic Place |
|
24,000 |
Point |
|
|
|
Geographic Names Information System (GNIS) for Connecticut |
|
24,000 |
Point |
|
|
Political Boundary - Connecticut |
|
Connecticut Mainland Line |
|
24,000 |
Line |
|
|
|
|
Connecticut Mainland Polygon |
|
24,000 |
Polygon |
|
|
Connecticut State Line |
|
24,000 |
Line |
|
|
|
Connecticut State Polygon |
|
24,000 |
Polygon |
|
|
Connecticut Town Line |
|
24,000 |
Line |
|
|
|
Connecticut Town Polygon |
|
24,000 |
Polygon |
|
|
Connecticut Towns for Clipping |
|
24,000 |
Polygon |
|
|
|
Connecticut Towns for Identify |
|
24,000 |
Polygon |
|
|
|
Connecticut House Districts |
|
100,000 |
Polygon |
|
|
|
Connecticut Senate Districts |
|
100,000 |
Polygon |
|
|
|
Connecticut US Congress Districts |
|
100,000 |
Polygon |
|
|
|
Connecticut County Index |
|
125,000 |
Polygon |
|
|
|
Connecticut Planning Region Index |
|
125,000 |
Polygon |
|
|
|
Connecticut Town Index |
|
125,000 |
Polygon |
|
|
Political Boundary - Connecticut and Vicinity |
|
Connecticut and Vicinity State Boundary Line |
|
24,000 |
Line |
|
|
|
|
Connecticut and Vicinity State Boundary Polygon |
|
24,000 |
Polygon |
|
|
Connecticut and Vicinity County Boundary Line |
|
24,000 |
Line |
|
|
|
Connecticut and Vicinity County Boundary Polygon |
|
24,000 |
Polygon |
|
|
Connecticut and Vicinity Town Boundary Line |
|
24,000 |
Line |
|
|
|
Connecticut and Vicinity Town Boundary Polygon |
|
24,000 |
Polygon |
|
|
Connecticut and Vicinity Index State Boundary Line |
|
100,000 |
Line |
|
|
|
Connecticut and Vicinity Index State Boundary Polygon |
|
100,000 |
Polygon |
|
|
Connecticut and Vicinity Index County Boundary Line |
|
100,000 |
Line |
|
|
|
Connecticut and Vicinity Index County Boundary Polygon |
|
100,000 |
Polygon |
|
|
Connecticut and Vicinity Index Town Boundary Line |
|
100,000 |
Line |
|
|
|
Connecticut and Vicinity Index Town Boundary Polygon |
|
100,000 |
Polygon |
|
Political Boundary - Northeast U.S. |
|
Northeastern United States State Boundary Line |
|
24,000 |
Line |
|
|
|
|
Northeastern United States State Boundary Polygon |
|
24,000 |
Polygon |
|
|
Northeastern United States County Boundary Line |
|
24,000 |
Line |
|
|
|
Northeastern United States County Boundary Polygon |
|
24,000 |
Polygon |
|
|
Northeastern United States Town Boundary Line |
|
24,000 |
Line |
|
|
|
Northeastern United States Town Boundary Polygon |
|
24,000 |
Polygon |
|
|
Northeast United States Index County Boundary Line |
|
100,000 |
Line |
|
|
|
Northeast United States Index County Polygon |
|
100,000 |
Polygon |
|
|
Northeast United States Index State Boundary Line |
|
100,000 |
Line |
|
|
|
Northeast United States Index State Polygon |
|
100,000 |
Polygon |
|
|
Northeast United States Index Town Boundary Line |
|
100,000 |
Line |
|
|
|
Northeast United States Index Town Polygon |
|
100,000 |
Polygon |
|
|
|
|
Connecticut DEP Boat Launches |
12/8/2008 |
24,000 |
Point |
|
|
|
|
|
|
DEP Property |
10/1/2009 |
24,000 |
Polygon |
|
|
|
|
Federal Open Space |
|
24,000 |
Polygon |
|
|
|
1997 Municipal and Private Open Space |
|
24,000 |
Polygon |
|
|
|
Protected Open Space
Non-coastal towns |
|
24,000 |
Polygon |
|
|
|
Protected Open Space Data Table
Non-coastal towns |
|
|
Table |
|
|
Connecticut Parcels for Protected Open Space Mapping |
|
Varied |
Polygon |
|
|
|
|
|
Soil Survey Geographic (SSURGO) database for the State of Connecticut - Map Unit Boundary Polygons |
|
12,000 |
Polygon |
|
|
|
|
Soil Interpretation Lookup Table for SSURGO database for the State of Connecticut |
|
|
Table |
|
|
Farmland Soils interpretation of Soil Survey Geographic (SSURGO) database for the State of Connecticut |
|
12,000 |
Polygon |
|
|
|
|
|
Connecticut Trail |
6/1/2006 |
24,000 |
Line |
|
|
|
|
Connecticut Trail Access Point |
|
24,000 |
Point |
|
|
Connecticut Trail Feature |
|
24,000 |
Point |
|
|
Connecticut Trail Point of Interest |
6/1/2006 |
24,000 |
Point |
|
|
Connecticut Trail Roadway |
|
24,000 |
Line |
|
|
Connecticut Trail System Data |
|
|
Table |
|
|
|
|
Connecticut Airports |
|
24,000 |
Line |
|
|
|
|
Federal Aviation Administration Airport Locations |
|
24,000 |
Point |
|
|
|
Airport Polygon |
|
24,000 |
Polygon |
|
|
|
Connecticut Railroads |
|
24,000 |
Line |
|
|
|
Connecticut Roads and Trails |
|
24,000 |
Line |
|
|
|
Connecticut Routes |
|
100,000 |
Line |
|
|
|
Connecticut Street Network State Plane, TIGER/Line 2000 |
|
100,000 |
Line |
|
|
|
|
|
Long Island Sound Submerged Cable and Pipeline Areas |
|
24,000 |
Polygon |
|
|
|
|
Sewer Service Area |
1/1/1998 |
24,000 |
Polygon |
|
|
|
|
|
Connecticut Drainage Basin Line |
|
24,000 |
Line |
|
|
|
|
Connecticut Drainage Basin Poly |
|
24,000 |
Polygon |
|
|
Connecticut Local Drainage Basin Line |
|
24,000 |
Line |
|
|
|
Connecticut Local Drainage Basin Poly |
|
24,000 |
Polygon |
|
|
Connecticut Subregional Drainage Basin Line |
|
24,000 |
Line |
|
|
|
Connecticut Subregional Drainage Basin Poly |
|
24,000 |
Polygon |
|
|
Connecticut Regional Drainage Basin Line |
|
24,000 |
Line |
|
|
|
Connecticut Regional Drainage Basin Poly |
|
24,000 |
Polygon |
|
|
Connecticut Major Drainage Basin Line |
|
24,000 |
Line |
|
|
|
Connecticut Major Drainage Basin Poly |
|
24,000 |
Polygon |
|
|
Connecticut Subregional Drainage Basin Clip |
|
24,000 |
Polygon |
|
|
|
Connecticut Subregional Drainage Basin Intersect |
|
24,000 |
Polygon |
|
|
|
Connecticut Subregional Drainage Basin Union |
|
24,000 |
Polygon |
|
|
|
Connecticut Watershed Boundary Dataset Line |
|
24,000 |
Line |
|
|
|
Connecticut Watershed Boundary Dataset Poly |
|
24,000 |
Polygon |
|
|
Prerelease Connecticut Watershed Boundary Dataset |
|
24,000 |
Polygon |
|
|
Dataset Information
1Date Last Updated - The date a layer that is subject to change was last updated and published. This date corresponds to the Citation Publication Date element in the corresponding FGDC Metadata document.
2Source Map Scale - The map scale a layer is intended to be viewed and analyzed, which is usually based on the map scale of the source material that was digitized to initially create the layer. For best results, view and analyze layers with the same source map scales.
3Data Description - FGDC Metadata is available online and included with each data download.
4Data Download - Depending on the layer, data is downloadable in three formats.
- ArcGIS File Geodatabase - Compatible with ArcGIS Desktop 9.3 software or greater. File Geodatabase downloads typically include more than one feature class with an ArcGIS Layer file (*.lyr) for each feature class that assigns predefined scale thresholds and feature symbology. File Geodatabase data typically displays more quickly than data in Shapefile format.
- Shapefile - Compatible with ArcView 3, ArcGIS Desktop 9, ArcExplorer, and ArcGIS Explorer software. All shapefile downloads include an ArcGIS Layer file (*.lyr) that assigns predefined scale thresholds and feature symbology.
- ArcInfo Export File - Compatible with ArcInfo Workstation, ArcView 3 and ArcGIS Desktop software. This is an old data format. Each download includes an ArcInfo Coverage Interchange Files (*.e00) that must be imported and converted to ArcInfo Coverage format before use.
Disclaimer: The Connecticut Department of Environmental Protection provides this GIS data for download. No restrictions or legal prerequisites exist for using the data. The data is suitable for use at appropriate scale as noted. Although this data has been used and/or created by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection as to the accuracy of the data and or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data.
