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CT Vicinity Town Lines
Connecticut and Vicinity Town Boundary data are intended for geographic display of state, county and town (municipal) boundaries at statewide and regional levels. Use it to map... -
CT Vicinity State Lines
Connecticut and Vicinity State Boundary data are intended for geographic display of state boundaries at statewide and regional levels. Use it to map and label states on a map.... -
Impaired Lake 2016
Connecticut 303(d) Impaired Waters 2016 is a subset of Connecticut 305(b) Assessed Waters 2016. If any one of the assigned designated uses is categorized as NOT Supporting, the... -
Quaternary Geology
See full Data Guide here. Quaternary Geology Feature Set is 1:24,000-scale data that illustrates the geologic features formed in Connecticut during the Quaternary Period, which... -
Named Waterbody Line
Named Waterbody is a 1:24,000-scale, polygon and line feature-based layer that includes all named waterbodies depicted on the U.S. Geological Survey (USGS) 7.5 minute... -
Connecticut Airports FAA
Point features of airports in Connecticut, based on Federal Aviation Administration records. -
Connecticut Railroads
Connecticut Railroads is a 1:24,000-scale, feature-based layer that includes railroad features on the U.S. Geological Survey (USGS) 7.5 minute topographic quadrangle maps for... -
Major Basin Polygon
See full Data Guide here.Major Drainage Basin Set: Connecticut Major Drainage Basins is 1:24,000-scale, polygon and line feature data that define Major drainage basin areas in... -
Environmental Justice 2021 Set
Environmental Justice Block Groups 2021 was created from Connecticut block group boundary data located in the Census Bureau's 2019 TIGER/Line Shapefiles. The poverty data used... -
Coastal Area and Boundary Polygon
Coastal Area & Boundary Polygon: The Coastal Area layer is a 1:24,000-scale, polygon feature-based layer that includes the land and waters that lie within the Coastal Area... -
Tidal Wetlands 1970s
Tidal Wetlands 1970's represents the historic regulatory tidal wetland boundaries produced during the early 1970's by the State of Connecticut Department of Agriculture and... -
305b Assessed River 2018
305b Assessed 2018 River Lake Estuary Set: Connecticut 305b Assessed Estuary 2018 is a 1:24,000-scale, polygon feature-based layer that includes estuaries that have been... -
CT Vicinity County Lines
Connecticut and Vicinity County Boundary data are intended for geographic display of state and county boundaries at statewide and regional levels. Use it to map and label... -
Eelgrass Beds 2009 Set
Eelgrass Beds 2009 Set: This data layer was created by the Conservation Management Institute, Virginia Tech University for the USFWS National Wetlands Inventory, Region 5. The... -
Shellfish Area Town Line
Shellfish Area Classification Set: The Connecticut Department of Environmental Protection cooperated with the Department of Agriculture, Bureau of Aquaculture to publish the... -
Erosion Susceptibility Set
Connecticut Erosion Susceptibility a 1:24,000-scale, polygon feature-based layer that was developed as a predictive tool to show areas most susceptible to terrace escarpment... -
Long Island Sound Submerged Cable And Pipeline Areas
The Long Island Sound Submerged Cable and Pipeline Areas layer is a polygon feature-based layer that includes the location of submerged cable and/or pipeline areas in Long... -
Quaternary Geology LIS Lake Deposits
Connecticut Quaternary Geology Long Island Submerged Marine Fluvial-Estuarine, Channel-Fill Deposits identifies early postglacial, channel-fill deposits submerged in Long Island... -
Connecticut Subregional Drainage Basin
A standardized mapping of natural drainage basins in Connecticut was completed in 1981 by the Connecticut Department of Environmental Protection (DEP). This drainage basin... -
Eelgrass Beds 93-95 Set
Eelgrass Beds 93-95 Set: Eelgrass Sample Points is a 1:24,000-scale, point feature-based layer that depicts the locations where eelgrass (Zostera marina) was either observed or...
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