GIS Data Layer Name
Data update dates are in red |
Data
Description |
Source
Map
Scale |
Data
Type |
Data
Download |
CT ECO
Map Service
New! |
|
Bioscience |
|
|
|
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 |
|
|
Connecticut Eelgrass Beds 2006 Poly |
|
24,000 |
Polygon |
|
Connecticut Eelgrass Beds 2009 Field Data |
|
24,000 |
Point |
|
|
Connecticut Eelgrass Beds 2009 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 |
|
|
Shellfish |
|
24,000 |
Polygon |
|
|
Tidal Wetlands, 1970's |
|
24,000 |
Polygon |
|
|
Tidal Wetlands, 1990's |
|
24,000 |
Polygon |
|
|
Connecticut Historic Shoreline 1880s |
|
24,000 |
Line |
|
|
Connecticut Historic Wetlands 1880s |
|
24,000 |
Polygon |
Endangered Species and Habitats |
|
Natural Diversity Database Areas
December 2012 |
|
|
24,000 |
Polygon |
|
|
|
|
Critical Habitats 7/1/2009 |
|
|
12,000 |
Polygon |
|
|
Elevation and Bathymetry |
|
|
|
Connecticut 20 Meter Contours |
|
100,000 |
Line |
|
|
|
|
Connecticut 2 Feet Contours 5/18/2011 |
|
|
|
Line |
na |
|
|
|
Connecticut 5 Feet Contours 5/18/2011 |
|
Line |
|
|
Connecticut 10 Feet Contours 5/18/2011 |
|
Line |
|
|
Connecticut 20 Feet Contours 5/18/2011 |
|
Line |
|
|
Connecticut 50 Feet Contours 5/18/2011 |
|
Line |
|
|
Connecticut 100 Feet Contours 5/18/2011 |
|
Line |
|
|
|
|
Connecticut Shaded Relief |
|
|
10 ft
image
pixel |
Raster |
|
|
|
Connecticut Hillshade |
|
|
Raster |
|
|
|
Bathymetry Contours for Lakes (lines) |
|
|
24,000 |
Line |
|
|
|
Bathymetry Contours for Lakes (polygons) |
|
24,000 |
Polygon |
Long Island Sound Bathymetry |
|
Bathymetric Contours in Meters for Long Island Sound |
|
100,000 |
Line |
|
|
|
|
Terrain Datasets |
|
Connecticut Terrain Dataset -
Version 1 |
|
|
|
Terrain (mass points) |
|
ArcGIS
FileGDB
(20 GB)
Available on
request |
|
|
Connecticut Terrain Dataset -
Version 2 |
|
|
Terrain (mass points) |
|
|
|
|
Environmental |
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 |
|
LIS Dredged Material Disposal Sites |
|
24,000 |
Polygon |
|
|
Shellfish Area Classification Line |
|
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 |
|
Flooding and Inundatation |
|
Worst Case Hurricane Surge Inundation for CT |
|
|
Unknown |
Polygon |
|
|
|
|
FEMA DFIRM for CT - Base Flood Elevation |
|
|
Line |
|
|
|
FEMA DFIRM for CT, Coastal Barrier Resource Sys Units |
|
|
Polygon |
|
FEMA DFIRM for CT, Hardcopy Map Panels |
|
|
Polygon |
|
FEMA DFIRM for CT, Flood Insurance Risk Zones |
|
|
Polygon |
|
FEMA DFIRM for CT, Flood Insurance Risk Zone Boundaries |
|
|
Line |
|
FEMA DFIRM for CT, Flood Control Structures |
|
|
Line |
|
FEMA DFIRM for CT, Bench Marks |
|
|
Point |
|
FEMA DFIRM for CT, Cross-section Lines |
|
|
Line |
| National Flood Hazard Data |
Visit the FEMA Map Service Center |
Natural Resource Management |
|
Aquifer Protection Areas 03/01/2013 |
|
|
24,000 |
Polygon |
|
|
|
|
Ground Water Quality Classifications Polygon 8/14/2012 |
|
|
24,000 |
Polygon |
|
|
Surface Water Quality Classifications Line 2/25/2011 |
|
24,000 |
Line |
|
Surface Water Quality Classifications Polygon, 2/25/2011 |
|
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 |
|
Connecticut 305B Assessed Estuary 2010 |
|
24,000 |
Polygon |
|
|
Connecticut 305B Assessed Lake 2010 |
|
24,000 |
Polygon |
|
Connecticut 305B Assessed River 2010 |
|
24,000 |
Line |
|
DEEP Fisheries Management Area Line |
|
24,000 |
Line |
|
|
|
DEEP Fisheries Management Area Poly |
|
24,000 |
Poly |
|
DEEP Fisheries Stream Survey Points |
|
24,000 |
Point |
|
Utility Infrastructure and Piplelines |
|
Long Island Sound Submerged Cable and Pipeline Areas |
|
24,000 |
Polygon |
|
|
|
|
Sewer Service Area 1/1/1998 |
|
24,000 |
Polygon |
|
|
Geographic Names |
|
|
|
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 |
|
|
Geoscience |
|
|
|
Connecticut Bedrock Geology Line |
|
50,000 |
Line |
|
|
|
|
Connecticut Bedrock Geology Polygon |
|
50,000 |
Polygon |
|
Connecticut Quaternary Geology and Surficial Materials Line |
|
|
24,000 |
Line |
|
|
Connecticut Quaternary Geology and Surficial Materials Polygon |
|
24,000 |
Polygon |
|
Connnecticut Quaternary Geology Line |
|
24,000 |
Line |
|
Connecticut Quaternary Geology Point |
|
24,000 |
Point |
|
Connecticut Quaternary Geology Geologic Basin |
|
24,000 |
Line |
|
Connecticut Quaternary Geology Cross-section Lines |
|
24,000 |
Line |
|
LIS Quaternary Geology Submerged Marine Fluvial-Estuarine, Channel-Fill Deposits |
|
24,000 |
Line |
|
|
LIS Quaternary Geology Marine Deltaic Deposits |
|
24,000 |
Line |
|
LIS Quaternary Geology Submerged Marine Lacustrine Fan Deposits |
|
24,000 |
Line |
|
LIS Quaternary Geology Submerged Marine Lake Deposits |
|
24,000 |
Line |
|
LIS Quaternary Geology End Moraine Deposits |
|
24,000 |
Line |
|
Connecticut Surficial Material Line |
|
|
24,000 |
Line |
|
|
Connecticut Surficial Material Polygon |
|
24,000 |
Polygon |
|
Connecticut Surficial Aquifer Texture |
|
24,000 |
Polygon |
|
|
Connecticut Surficial Stratified Drift |
|
24,000 |
Polygon |
|
|
Connecticut Surficial Aquifer Potential |
|
125,000 |
Polygon |
|
|
Connecticut Erosion Susceptibility |
|
24,000 |
Polygon |
|
|
Connecticut Erosion Sites |
|
24,000 |
Point |
|
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 |
|
|
|
Soil Survey Geographic (SSURGO) database for the State of Connecticut - Map Unit Boundary Polygons |
|
|
12,000 |
Polygon |
|
|
|
|
Hydric Soils |
|
|
Joined
Soil
Map
Unit
Data
Table
|
|
Inland Wetland Soils |
|
|
Soil Drainage Class |
|
|
Soil Flooding Class |
|
|
Soil Parent Material |
|
|
Soil Potential Ratings for Subsurface Sewage Disposal Systems |
|
|
Farmland Soils interpretation of Soil Survey Geographic (SSURGO) database for the State of Connecticut 4/6/2011 |
|
|
12,000 |
Polygon |
|
|
Hydrography |
Hydrography and Waterbodies |
|
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 |
Watersheds and Drainage Basins |
|
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 Local Drainage Basin Direction |
|
24,000 |
Point |
|
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 |
|
|
Land Conservation and Outdoor Recreation |
|
|
|
Connecticut DEEP Boat Launches 12/8/2008 |
|
24,000 |
Point |
|
|
|
|
|
|
Connecticut Trail |
|
24,000 |
Line |
|
|
|
|
Connecticut Trail Access Point |
|
24,000 |
Point |
|
Connecticut Trail Feature |
|
24,000 |
Point |
|
Connecticut Trail Point of Interest |
|
24,000 |
Point |
|
Connecticut Trail Roadway |
|
24,000 |
Line |
|
Connecticut Trail System Data |
|
|
Table |
Open Space, DEEP Property and Parcels |
|
DEEP Property |
|
|
24,000 |
Polygon |
|
|
|
|
Federal Open Space |
|
|
24,000 |
Polygon |
|
|
1997 Municipal and Private Open Space |
|
|
24,000 |
Polygon |
|
|
Protected Open Space Mapping (POSM) 8/2011 |
|
|
24,000 |
Polygon |
|
|
Protected Open Space Mapping Data Table 8/2011 |
|
|
Table |
|
Connecticut Parcels (for Protected Open Space Mapping) These data are used to define protected open space parcel boundaries for the POSM project. Data may not be current. Contact individual towns for the most current data. 8/2010 |
|
|
Varied |
Polygon |
|
|
Map Imagery |
|
|
|
Connecticut USGS Topographic Quad Map Mosaic (seamless) |
|
24,000 |
Raster |
|
|
|
|
|
|
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 |
|
|
Orthophotography |
|
|
|
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 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 2006 NAIP Orthophoto Tile Index |
|
24,000 |
Polygon |
|
|
Connecticut 2008 NAIP Orthophoto Tile Index |
|
24,000 |
Polygon |
|
|
Connecticut 2010 NAIP Orthophoto Tile Index |
|
24,000 |
Polygon |
|
|
Connecticut 2008 Urban Area Orthophoto Tile Index |
|
24,000 |
Polygon |
|
|
CRCOG 2009 Orthophoto Tile Index |
|
24,000 |
Polygon |
|
|
Connecticut 2004 Coastal Orthophoto Tile Index |
|
24,000 |
Polygon |
|
|
Connecticut 2005 Coastal Orthophoto Tile Index |
|
24,000 |
Polygon |
|
|
Connecticut 2010 Coastal Orthophoto Tile Index |
|
24,000 |
Polygon |
|
|
|
|
Connecticut 1990 Orthophoto (leaf off) |
|
|
1 meter image pixel size |
Raster |
|
|
|
|
Connecticut 2004 Orthophoto (leaf off) |
|
|
0.8 ft image pixel size |
Raster |
|
|
Connecticut 2006 Color NAIP (leaf on) |
|
|
1 meter image pixel size |
Raster |
|
|
Connecticut 2008 (4 Band) Color and Infrared NAIP (leaf on) |
|
|
1 meter image pixel size |
Raster |
|
|
Connecticut 2010 (4 Band) Color and Infrared NAIP (leaf on)NEW! |
|
|
1 meter image pixel size |
Raster |
|
|
Connecticut 2008 Color Urban Area (leaf off) |
|
|
1 ft image pixel size |
Raster |
|
|
CRCOG 2009 Orthophotography (leaf off) NEW! |
|
|
3 inch image pixel size |
Raster |
|
|
Coastal CT 2004 Color Orthphoto (leaf on) |
|
|
0.5 meter image pixel size |
Raster |
|
|
Coastal CT 2004 Infrared Orthophoto (leaf on) |
|
|
0.5 meter image pixel size |
Raster |
|
|
Coastal CT 2005 Infrared Orthophoto (leaf on) |
|
|
1 ft image pixel size |
Raster |
|
|
Coastal CT 2010 (4 Band) Color and Infrared Orthophoto (leaf on) NEW! |
|
|
1 ft image pixel size |
Raster |
|
|
Political Boundaries |
Connecticut State and Municipal Boundaries |
|
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 |
|
Connecticut and Vicinity State and Municipal Boundaries |
|
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 |
Northeast U.S. State and Municipal Boundaries |
|
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 State Boundary Line |
|
100,000 |
Line |
|
|
Northeast United States Index State Polygon |
|
100,000 |
Polygon |
|
Northeast United States Index County Boundary Line |
|
100,000 |
Line |
|
|
Northeast United States Index County Polygon |
|
100,000 |
Polygon |
|
Northeast United States Index Town Boundary Line |
|
100,000 |
Line |
|
|
Northeast United States Index Town Polygon |
|
100,000 |
Polygon |
|
Other |
|
|
|
Connecticut USGS 7.5 Minute Quadrangle Index |
|
24,000 |
Polygon |
|
|
|
|
Connecticut Town Index |
|
125,000 |
Polygon |
|
|
Connecticut County Index |
|
125,000 |
Polygon |
|
|
Connecticut Planning Region Index |
|
125,000 |
Polygon |
|
|
Connecticut House Districts |
|
100,000 |
Polygon |
|
|
Connecticut Senate Districts |
|
100,000 |
Polygon |
|
|
Connecticut US Congress Districts |
|
100,000 |
Polygon |
|
|
Connecticut Geographic Names |
|
24,000 |
Point |
|
|
Connecticut Geographic Name Table |
|
|
Table |
|
Connecticut Town Lookup Table for Geographic Names |
|
|
Table |
|
Connecticut Geographic Place |
|
24,000 |
Point |
|
|
Connecticut Airports Polygon |
|
24,000 |
Polygon |
|
|
Connecticut Routes |
|
24,000 |
Line |
|
|
Connecticut Railroads |
|
24,000 |
Line |
|
|
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 |
|
Connecticut Hydrography Line |
|
24,000 |
Line |
|
|
Connecticut Hydrography Polygon |
|
24,000 |
Polygon |
|
Connecticut Town Line |
|
24,000 |
Line |
|
|
Connecticut Town Polygon |
|
24,000 |
Polygon |
|
Connecticut State Line |
|
24,000 |
Line |
|
|
Connecticut State Polygon |
|
24,000 |
Polygon |
|
Connecticut and Vicinity Index Town Boundary Line |
|
100,000 |
Line |
|
|
Connecticut and Vicinity Index Town Boundary Polygon |
|
100,000 |
Polygon |
|
Connecticut and Vicinity Index State Boundary Line |
|
100,000 |
Line |
|
|
Connecticut and Vicinity Index State Boundary Polygon |
|
100,000 |
Polygon |
|
|
|
Mapbook Major Basin Index |
|
24,000 |
Polygon |
|
|
|
|
Mapbook Regional Basin Index |
|
24,000 |
Polygon |
|
|
Mapbook Subregional Basin Index |
|
24,000 |
Polygon |
|
|
Mapbook Town Index |
|
24,000 |
Polygon |
|
|
Mapbook 7.5 Minute Quadrangle Index |
|
24,000 |
Polygon |
|
