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    StateArchaeologyGridState of Connecticut — This layer denotes the presence of archaeology sites utilizing a grid based on the U.S. National Grid (10,000 m) divided into nine sections per 10,000 m grid. The red...
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    StateSoils Hydric RatingState of Connecticut — This rating indicates the percentage of map units that meets the criteria for hydric soils. Map units are composed of one or more map unit components or soil types,...
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    StateCT House DistrictsState of Connecticut — This feature layer represents the boundaries of Connecticut's House of Representative’s districts based on the latest redistricting process following the 2020 Census....
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    StateCT Shorelines: 1983-2006State 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...
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    StateCT CountiesState of Connecticut — This CT Counties layer consists of individual polygons representing each of the 8 counties that make up the state of Connecticut. This feature layer is directly...
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    StateConnecticut Planning Region IndexState of Connecticut — Connecticut Planning Region Index is a general purpose index map of Connecticut Planning Regions based on mapped information compiled at 1:125,000 scale (1 inch...
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    StateCT Senate DistrictsState of Connecticut — This feature layer represents the boundaries of Connecticut's Senate districts based on the latest redistricting process following the 2020 Census. More information...
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    StateCT Congressional DistrictsState of Connecticut — This feature layer represents the boundaries of Connecticut's congressional districts based on the latest redistricting process following the 2020 Census. More...
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    StateCT DCF Region BoundariesState of Connecticut — This is a boundary file showing the catchment area for which each of the 6 DCF Regions is responsible. Catchment areas are comprised of complete Towns, but not...
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    StateImpaired Lake 2014State of Connecticut — Connecticut 303(d) Impaired Waters 2014 is a subset of Connecticut 305(b) Assessed Waters 2014. If any one of the assigned designated uses is categorized as NOT...
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    StateSoils Drainage ClassState of Connecticut — Drainage class (natural)" refers to the frequency and duration of wet periods under conditions similar to those under which the soil formed. Alterations of the water...
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    StateQuaternary GeologyState 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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    StateHUC Watershed LineState of Connecticut — This data set is a digital hydrologic unit boundary layer that is at the Subwatershed (12-digit) level. The original data set was developed by delineating the...
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    StateMinZoomTownsState of Connecticut — A custom basemap created for internal Connecticut Department of Transportation in web apps and maps.The basemap represents the most recent and active Public Road...
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    StateCoastal Area PolygonState of Connecticut — 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...
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    StateImpaired Estuary 2016State of Connecticut — 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...
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    StateQuaternary Geology LIS Lake DepositsState of Connecticut — Connecticut Quaternary Geology Long Island Submerged Marine Fluvial-Estuarine, Channel-Fill Deposits identifies early postglacial, channel-fill deposits submerged in...
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    StateShellfish Area MarinaState of Connecticut — Shellfish Area Classification Set: The Connecticut Department of Environmental Protection cooperated with the Department of Agriculture, Bureau of Aquaculture to...
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    StateTrail InterestState of Connecticut — DEEP Trails Set: Trail Access Points are point features in the Statewide Trails Database that describe where trails are accessed at trail heads, state and municipal...
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    StateCT Municipalities (with FIPS)State of Connecticut — This CT Planning Regions layer consists of individual polygons representing each of the 169 municipalities that make up the state of Connecticut. This feature layer...
