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State
Named Waterbody Set
State of Connecticut —
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... -
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Bathymetric Contours in Meters for Long Island Sound
State of Connecticut —
The Long Island Sound Study developed these digital data from 1:100,000-scale National Oceanic & Atmospheric Administration (NOAA) and United States Geological... -
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Northeastern States County Boundary Set
State of Connecticut —
Northeastern United States County Boundary data are intended for geographic display of state and county boundaries at statewide and regional levels. Use it to map and... -
State
Topo Survey Sheet 1880s Shore
State of Connecticut —
Connecticut Historic Shoreline Wetlands: 1880s NOS T-Sheet Shoreline Features is a 1:10,000-scale, line feature-based layer that includes information depicting... -
State
CT Hurricane Surge Inundation
State of Connecticut —
See full Data Guide here. Worst case Hurricane Surge Inundation areas for category 1 through 4 hurricanes striking the coast of Connecticut. Hurricane surge values... -
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Ground Water Classifications Polygon
State of Connecticut —
See full Data Guide here.Ground Water Classifications Polygon: Ground Water Quality Classifications is a polygon feature-based layer compiled at 1:24,000 scale that... -
State
305b Assessed 2012 Lake
State of Connecticut —
305b Assessed 2012 River, Lake, Estuary set: Connecticut 305b Assessed River 2012 is a 1:24,000-scale, line feature-based layer that includes rivers that have been... -
State
Northeastern States Town Boundary Set
State of Connecticut —
Northeastern United States Town Boundary data are intended for geographic display of state, county and town (municipal) boundaries at statewide and regional levels.... -
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Cold Water Sites Set
State of Connecticut —
Cold water habitat was determined using available fish and water temperature data collected by the Connecticut Department of Energy and Environmental Protection (CT... -
State
CT Buffered Road
State of Connecticut —
Connecticut Buffered Roads is 1:24,000-scale base map data. This layer is intended to be used with the Roads and Trails layer to reproduce the cartographic symbology... -
State
Natural Diversity Database
State of Connecticut —
See full Resource Data Guide here.Abstract: The Natural Diversity Database Areas is a 1:24,000-scale, polygon feature-based layer that represents general locations of... -
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Eelgrass Beds 2002 Polygon
State of Connecticut —
Eelgrass Beds 2002 Set: Field Verification of Eelgrass beds, located in the Long Island Sound, Eastern shore of Connecticut from Clinton Harbor to the Rhode Island... -
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Glacial Sediment Line
State of Connecticut —
Thickness of Glacial Sediment in Connecticut and Long Island Sound Set: The Thickness of Glacial Sediments in Connecticut and the Long Island Sound Basin layer... -
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Northeast County Lines
State of Connecticut —
Northeastern United States County Boundary data are intended for geographic display of state and county boundaries at statewide and regional levels. Use it to map and... -
State
Drainage Basin Set
State of Connecticut —
See full Data Guide here. Drainage Basin Set: Connecticut Drainage Basins is 1:24,000-scale, polygon and line feature data that define natural drainage areas in... -
State
2011 Protected Open Space Mapping Set
State of Connecticut —
See full Data Guide here. This layer includes polygon features that depict protected open space for towns of the Protected Open Space Mapping (POSM) project, which is... -
State
Environmental Justice Set 2023
State of Connecticut —
Environmental Justice 2023 Set is comprised of two layers: Environmental Justice Block Groups 2023 and Environmental Justice Distressed Municipality 2023. All Census... -
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Surficial Aquifer Potential
State of Connecticut —
This map has been prepared for statewide ground water resource protection, water management, non-point source pollution prevention, and land use planning. The map was... -
State
Quaternary Geology
State of Connecticut —
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... -
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Positive Net Shoreline Movement (meters)
State of Connecticut —
Shorelines are continuously moving in response to winds, waves, tides, sediment supply, changes in relative sea level, and human activities. Shoreline changes are...