Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
241 datasets found
  • State

    Impaired 2010 River Lake Estuary Set    recent views

    State of Connecticut —

    Connecticut 303(d) Impaired Waters 2010 is a subset of Connecticut 305(b) Assessed Waters 2010. If any one of the assigned designated uses is categorized as NOT...
  • State

    305b Assessed 2008 River, Lake, Estuary Set    recent views

    State of Connecticut —

    305b Assessed 2008 River, Lake, Estuary Set: Connecticut 305b Assessed River 2008 is a 1:24,000-scale, line feature-based layer that includes rivers that have been...
  • State

    Eelgrass Beds 2006 Set    recent views

    State of Connecticut —

    Eelgrass Beds 2006 Set: This data layer was created by the USFWS National Wetlands Inventory, Region 5. Delineations of 2006 eelgrass beds were completed on the...
  • State

    Eelgrass Beds 2009 Set    recent views

    State of Connecticut —

    Eelgrass Beds 2009 Set: This data layer was created by the Conservation Management Institute, Virginia Tech University for the USFWS National Wetlands Inventory,...
  • State

    Connecticut Mainland    recent views

    State of Connecticut —

    Connecticut Mainland Line includes the line features of a layer named Connecticut Mainland. Connecticut Mainland is a 1:24,000-scale, polygon and line feature-based...
  • State

    Thickness of Glacial Sediment in Connecticut and Long Island Sound Set    recent views

    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...
  • State

    Eelgrass Beds Historic Set    recent views

    State of Connecticut —

    Eelgrass Beds Historic Set: Historic Eelgrass Points is a 1:24,000-scale, point feature-based layer that depicts the locations of historic eelgrass beds (Zostera...
  • State

    Impaired 2006 River Lake Estuary Set    recent views

    State of Connecticut —

    Connecticut 303(d) Impaired Waters 2006 is a subset of Connecticut 305(b) Assessed Waters 2006. If any one of the assigned designated uses is categorized as NOT...
  • State

    Erosion Susceptibility Set    recent views

    State of Connecticut —

    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...
  • State

    Eelgrass Beds 2002 Set    recent views

    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...
  • State

    Impaired 2020 River, Lake, Estuary Set    recent views

    State of Connecticut —

    Connecticut 303(d) Impaired Waters 2020 is a subset of Connecticut 305(b) Assessed Waters 2020. If any one of the assigned designated uses is categorized as NOT...
  • State

    305b Assessed 2010 River, Lake, Estuary Set    recent views

    State of Connecticut —

    305b Assessed 2010 River, Lake, Estuary Set: Connecticut 305b Assessed River 2010 is a 1:24,000-scale, line feature-based layer that includes rivers that have been...
  • State

    Quaternary Geology Features Set    recent views

    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...
  • State

    Connecticut Hydrography Set    recent views

    State of Connecticut —

    Connecticut Hydrography Set: Connecticut Hydrography Line includes the line features of a layer named Hydrography. Hydrography is a 1:24,000-scale, polygon and line...
  • State

    Subregional Drainage Basin Set    recent views

    State of Connecticut —

    See full Data Guide here.Subregional Drainage Basic Set: Connecticut Subregional Drainage Basins is 1:24,000-scale, polygon and line feature data that define...
  • State

    Impaired Estuary 2016    recent views

    State 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...
  • State

    Eelgrass Beds 93-95 Observed Polygon    recent views

    State of Connecticut —

    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...
  • State

    Coastal Boundary Polygon    recent views

    State 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...
  • State

    CT 305b Assessed Lake 2022    recent views

    State of Connecticut —

    305b Assessed River, Lake, Estuary 2022: Connecticut 305b Assessed River 2022 is a 1:24,000-scale, line feature-based layer that includes rivers that have been...
  • State

    Ground Water Classifications Polygon    recent views

    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...
241 datasets found

You can also access this registry using the API (see API Docs).

Didn't find what you're looking for? Suggest a dataset here.