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
110 datasets found
  • State

    Connecticut and Vicinity State Boundary Set    recent views

    State of Connecticut —

    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...
  • State

    Northeast Town Lines    recent views

    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....
  • State

    Local Basin Lines    recent views

    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

    Connecticut and Vicinity Town Boundary Set    recent views

    State of Connecticut —

    Connecticut and Vicinity Town Boundary data are intended for geographic display of state, county and town (municipal) boundaries at statewide and regional levels. Use...
  • State

    Quaternary Geology    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

    305b Assessed 2008 Lake    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

    Lake Bathymetry Contours Lines    recent views

    State of Connecticut —

    See full Data Guide here. Lake Bathymetry describes the water depth for selected reservoirs, lakes, ponds, and coves in Connecticut. It includes depth contours, also...
  • State

    305b Assessed 2014 River, Lake, Estuary Set    recent views

    State of Connecticut —

    305b Assessed 2014 River Lake Estuary Set: Connecticut 305b Assessed River 2014 is a 1:24,000-scale, line feature-based layer that includes rivers that have been...
  • State

    Impaired 2018 River, Lake, Estuary Set    recent views

    State of Connecticut —

    Connecticut 303(d) Impaired Waters 2018 is a subset of Connecticut 305(b) Assessed Waters 2018. If any one of the assigned designated uses is categorized as NOT...
  • 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 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 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

    Surface Water Quality Classifications Set    recent views

    State of Connecticut —

    See full Data Guide here. Surface Water Quality Classifications Set: This dataset is a line and a polygon feature-based layer compiled at 1:24,000 scale that includes...
  • State

    Northeastern States State Boundary Set    recent views

    State of Connecticut —

    Northeastern United States State Boundary data are intended for geographic display of state boundaries at statewide and regional levels. Use it to map and label...
  • State

    Impaired 2022 River, Lake, Estuary Set    recent views

    State of Connecticut —

    Connecticut 303(d) Impaired Waters 2022 is a subset of Connecticut 305(b) Assessed Waters 2022. If any one of the assigned designated uses is categorized as NOT...
  • State

    Shellfish Area Classification Set    recent views

    State of Connecticut —

    Shellfish Area Classification Set: The Connecticut Department of Environmental Protection cooperated with the Department of Agriculture, Bureau of Aquaculture to...
  • State

    305b Assessed 2022 River, Lake, Estuary Set    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...
110 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.