Publication Date: May 2025.

Publication Date: May 2025. Updated as needed. Current as of the Publication Date. The data can be downloaded here: https://gis.ny.gov/civil-boundaries#about-civil-boundaries. This feature service has polygon layers for the following boundary types: State, Counties, Cites, Towns, Cities and Towns combined, Villages, and Indian Territories. In addition, there are separate shoreline layers for the State layer and the County layer. Boundaries are at 1:24,000-scale positional accuracy except for the shoreline in State Shoreline and Counties Shoreline which is being adjusted to 1:24,000-scale positional accuracy as part of ongoing work. Boundary changes are made as needed and based on authoritative sources. See metadata for each layer for additional information. This map service is available to the public. The State of New York, acting through the New York State Office of Information Technology Services, makes no representations or warranties, express or implied, with respect to the use of or reliance on the Data provided. The User accepts the Data provided “as is” with no guarantees that it is error free, complete, accurate, current or fit for any particular purpose and assumes all risks associated with its use. The State disclaims any responsibility or legal liability to Users for damages of any kind, relating to the providing of the Data or the use of it. Users should be aware that temporal changes may have occurred since this Data was created.

The New York State Coastal Management Program has established statewide boundaries in accordance with the requirements of the Coastal Zone Management Act of 1972, as amended, and its subsequently issued rules and regulations. The Coastal Map provides an estimation of the official New York State Coastal Area Boundary as defined in Section II of the New York State Coastal Management Program and Final Environmental Impact Statement (CMP FEIS). The coastal boundary was originally created as a set of maps at a scale of 1:48000. This digital representation has been created from the original paper copies through "heads-up" digitizing using geographic information software and the digital NYSDOT planimetric quadrangles at a scale of 1:24000. The official coastal boundary is a written description contained in the federally approved New York State Coastal Management Program, LIS CMP, and applicable LWRPs. The waterward boundary extends 3 miles into open ocean, to shared state lines in Long Island Sound and the New York Bight and to the International boundary in the Great Lakes, Niagara and St. Lawrence Rivers. Generally, the inland boundary is approximately 1,000 feet from the shoreline following well-defined features such as roads, railroads or shorelines as described in the CMP FEIS, unless otherwise indicated. Where necessary this boundary extends inland to include major state owned lands and facilities and electic power generation facilities which abut on the shoreline, major coastal recreational areas, significant agricultural lands, significant coastal habitats, scenic viewsheds of State or national significance, major historic or coastal dependent industrial areas, and the 100 year flood plain. In urbanized and other developed locations along the coast, the landward boundary is approximately 500 feet from the shoreline or less than 500 feet at locations where a major roadway or railway line runs parallel to the shoreline. The seaward boundary of New York State's coastal area includes all coastal waters within its territorial jurisdiction.View Dataset on the Gateway

Publication Date: May 2025.

Publication Date: May 2025.

Updated as needed. Current as of the Publication Date.

A vector polygon layer of county boundaries in New York State up to, and using the shorelines of, major hydrographic features. The source data was originally a compilation of U.S. Geological Survey 1:100,000-scale digital vector files and NYS Department of Transportation 1:24,000-scale and 1:75,000-scale digital vector files. Boundaries were revised to 1:24,000-scale positional accuracy and selectively updated based on court decisions. Currently, boundary changes are made as needed based on authoritative sources.

Additional metadata, including field descriptions, can be found at the NYS GIS Clearinghouse: https://gis.ny.gov/civil-boundaries.

Spatial Reference of Source Data: NAD 1983 UTM Zone 18N. Spatial Reference of Map Service: WGS 1984 Web Mercator Auxiliary Sphere.

This map service is available to the public.

The State of New York, acting through the New York State Office of Information Technology Services, makes no representations or warranties, express or implied, with respect to the use of or reliance on the Data provided. The User accepts the Data provided “as is” with no guarantees that it is error free, complete, accurate, current or fit for any particular purpose and assumes all risks associated with its use. The State disclaims any responsibility or legal liability to Users for damages of any kind, relating to the providing of the Data or the use of it. Users should be aware that temporal changes may have occurred since this Data was created.

Publication Date: May 2025.

Publication Date: October 2018A vector polygon GIS file that includes 1) the New York State boundary over land areas and 2) the state shoreline, including islands, in areas where the state boundary extends over major hydrographic features. The purpose is to provide an “outline” of the state for GIS and cartographic uses. It can be used to clip the boundaries in the Cities_Towns and Counties shapefiles back to the shoreline if it is desired to only use or depict the land areas covered by those jurisdictions around the perimeter of the state. The boundaries were revised to 1:24,000-scale accuracy. Ongoing work will adjust the shorelines to 1:24,000-scale accuracy.

Published: August 2022A vector polygon GIS file of NYSDEC regional boundaries to shorelines in New York State. The file was originally a compilation of U.S. Geological Survey 1:100,000-scale digital vector files and NYS Department of Transportation 1:24,000-scale and 1:75,000-scale digital vector files. Boundaries were revised to 1:24,000-scale positional accuracy and selectively updated based on court decisions. Currently, boundary changes are made as needed based on authoritative sources.

Publication Date: May 2025.

Publication Date: October 2018A vector polygon GIS file of county boundaries in New York State up to, and using the shorelines of, major hydrographic features. The file was originally a compilation of U.S. Geological Survey 1:100,000-scale digital vector files and NYS Department of Transportation 1:24,000-scale and 1:75,000-scale digital vector files. Boundaries were revised to 1:24,000-scale positional accuracy and selectively updated based on court decisions. Currently, boundary changes are made as needed based on authoritative sources.

The New York State shoreline of Lake Ontario was classified in 2002 during the International Joint Commission's Lake Ontario - St. Lawrence River (LOSLR) water level regulation study based on 1 km reaches. The New York State Department of Conservation (NYSDEC) desired a more precise classification of the shoreline, and as a result AECOM reviewed 2012 oblique imagery provided by the US Army Corps of Engineers (USACE) to define detailed shoreline reaches. AECOM generated a spatially referenced feature class for shoreline classifications which represents a more precise version of the shoreline classification feature class generated during the 2002 LOSLR study. The 2002 LOSLR study was used as a baseline to generate classifications. For consistency, geomorphic classification and structural classification types from the LOSLR study were used. Creation Date: 06/13/12. Latest Modification Date: 04/1/13.This datalayer provides information obtained as a result of oblique imagery review for the embayments along the New York State portion of Lake Ontario.The shoreline was divided into reaches and this dataset represents the line features for those reaches for the U.S. shoreline of Lake Ontario coded as embayments by the LOSLR study in 2002. Each feature within the data layer produced by AECOM represents a reach of shoreline of differing classification. Classification reaches were not defined according to a set unit of measure. In some instances a shoreline classification may span a couple thousand feet, spanning multiple tax parcels. In other instances, multiple classifications may exist for a single tax parcel.Original shoreline boundary was taken from the CityTown.shp datafile from the NYS Civil Boundaries (database) provided by NYS Office of Cyber Security (NYSOGS) via the NYS GIS Clearinghouse website for the following counties: (Niagara, Orleans, Monroe, Wayne, Cayuga, Oswego). Original shoreline boundary was taken from the NHDFlowline.shp datafile from the National Hydrography Dataset (NHD) (database) provided by NYSDEC via the NYS GIS Clearinghouse website for the following counties: (Jefferson). The shoreline polyline was modified to most accurately represent the actual shoreline based on 2010-2012 Bing Maps aerial imagery. The shapefile was split by shoreline type based on review of 2012 oblique imagery provided by the U.S. Army Corps of Engineers via: http://greatlakes.usace.army.mil.Attribute Fields:Shoreline_Code (Shoreline Type): The shoreline geomorphic classification for the type of shoreline (even if structure exists)Structural_Code_Primary (Structural Type (Primary)): The type of primary structural protection (closest to the shore)Structural_Condition_Primary (Structure Condition (Primary)): The condition of the primary structural protectionStructural_Code_Secondary (Structural Type (Secondary)): The type of secondary structural protectionStructural_Condition_Secondary (Structure Condition (Secondary)): The condition of the secondary structural protectionNotes (Notes): Notes recroded during the oblique imagery reviewTown: New York town where the shoreline is locatedCounty: New York county where the shoreline is located.View Dataset on the Gateway

This is a polygon GIS data layer showing the location and extent of various sidescan, multibeam and swath bathymetry surveys conducted by the USGS, Coastal and Marine Geology Program. Outlines of individual mosaic areas were combined to create one comprehensive layer that could be used to illustrate areas surveyed by USGS/CMGP seafloor mapping programs.

The New York State shoreline of Lake Ontario was classified in 2002 during the International Joint Commission's Lake Ontario - St. Lawrence River (LOSLR) water level regulation study based on 1 km reaches. The New York State Department of Conservation (NYSDEC) desired a more precise classification of the shoreline, and as a result AECOM reviewed 2012 oblique imagery provided by the US Army Corps of Engineers (USACE) to define detailed shoreline reaches. AECOM generated a spatially referenced feature class for shoreline classifications which represents a more precise version of the shoreline classification feature class generated during the 2002 LOSLR study. The 2002 LOSLR study was used as a baseline to generate classifications. For consistency, geomorphic classification and structural classification types from the LOSLR study were used. Creation Date: 06/13/12. Latest Modification Date: 08/15/12. This datalayer provides information obtained as a result of oblique imagery review for the entire coastline (excluding embayments) of the New York State portion of Lake Ontario.The shoreline was divided into reaches and this dataset represents the line features for those reaches for the U.S. shoreline of Lake Ontario, not including islands and embayments as coded by the LOSLR study in 2002. Each feature within the data layer produced by AECOM represents a reach of shoreline of differing classification. Classification reaches were not defined according to a set unit of measure. In some instances a shoreline classification may span a couple thousand feet, spanning multiple tax parcels. In other instances, multiple classifications may exist for a single tax parcel. Original shoreline boundary was taken from the CityTown.shp datafile from the NYS Civil Boundaries (database) provided by NYS Office of Cyber Security (NYSOGS) via the NYS GIS Clearinghouse website for the following counties: (Niagara, Orleans, Monroe, Wayne, Cayuga, Oswego). Original shoreline boundary was taken from the NHDFlowline.shp datafile from the National Hydrography Dataset (NHD) (database) provided by NYSDEC via the NYS GIS Clearinghouse website for the following counties: (Jefferson). The shoreline polyline was modified to most accurately represent the actual shoreline based on 2010-2012 Bing Maps aerial imagery. The shapefile was split by shoreline type based on review of 2012 oblique imagery provided by the U.S. Army Corps of Engineers via: http://greatlakes.usace.army.mil.Attribute Fields:Shoreline_Code (Shoreline Type): The shoreline geomorphic classification for the type of shoreline (even if structure exists)Structural_Code_Primary (Structural Type (Primary)): The type of primary structural protection (closest to the shore)Structural_Condition_Primary (Structure Condition (Primary)): The condition of the primary structural protectionStructural_Code_Secondary (Structural Type (Secondary)): The type of secondary structural protectionStructural_Condition_Secondary (Structure Condition (Secondary)): The condition of the secondary structural protectionNotes (Notes): Notes recroded during the oblique imagery reviewTown: New York town where the shoreline is locatedCounty: New York county where the shoreline is located.View Dataset on the Gateway

Connecticut Historic Shoreline Wetlands:

1880s NOS T-Sheet Shoreline Features is a 1:10,000-scale, line feature-based layer that includes information depicting historic shoreline features and wetland boundaries for areas of coastal Connecticut during the 1880s. The layer depicts information found on topographic survey sheets (T-sheets) from the US Coast and Geodetic Survey (USC&GS), a predecessor to the National Ocean Service (NOS). The layer represents conditions at a particular point in time. The layer does not depict current conditions. The layer includes ground condition features such as approximate shoreline, shoreline, wetland shoreline, wetland upland boundaries, wetland interior boundaries, man-made shoreline, jetties/breakwaters/groins, and piers/ramps/docks. Semi-submerged marshes, referred to here as "low marshes," ocurring where it is possible to discern marsh-like features waterward of the shoreline are also included. Off shore and riverine islands and rocks may be included depending on the quality of their depiction on the t-sheet. It does not include any non shoreline-centric elements that may have been depicted on the t-sheets such as buildings, roads, bridges, etc., nor does it include other off-shore features like sandbars, mud flats, tidal flats, etc. Features are line locations that represent the approximate location of shoreline features and wetland boundaries. Shoreline, as depicted on the T-sheets that pre-date 1927, reference an approximation of Mean High Water (MHW). Although MHW is technically determined by averaging the height of the high water line, (HWL) the landward extent of the last high tide over a 19 year lunar cycle, USC&GS topographers appoximated MHW by familarizing themselves with the tidal conditions in a given area and noting the assorted physical characteristics of the beach. (For a more complete description of this and other shoreline indicators, the reader is directed to the following article: "Historical Shoreline Change: Error Analysis and Mapping Accuracy," Crowell, M., Leatherman, S., and Buckley, M. Journal of Coastal Research, Vol 7, No. 3, 1991, pp 839-852.) Attribute information is comprised of codes to identify individual features, encode shoreline feature type information, and cartographically represent (symbolize) shoreline features on a map. These codes were derived in part from the National Oceanic & Atmospheric Administration (NOAA) Coastal Services Center (CSC) Historic Digital Shoreline Capture project and modified by the State of Connecticut Department of Environmental Protection to address the inclusion of wetland areas. This data was compiled at 1:10,000 scale. This data is not updated. Purpose: 1880s NOS T-Sheet Shoreline Features is 1:10,000-scale data. It depicts the location of historic shoreline features and wetland boundaries for all of coastal Connecticut with the exception of the area of New Haven Harbor from the West River in West Haven to the New Haven/East Haven town boundary. The features also extend slightly beyond the Connecticut state lines into Rye, New York and Westerly, Rhode Island. Use this layer to display historic shoreline and wetlands. Since this data may be considered a crucial element in land use planning, determination of boundary extents, performing change studies for erosion and accretion examinations and other types of decision making this layer may also be used for analytic purposes. Use this layer with other 1:10,000-scale map data such as any other NOS T-sheet Shoreline or Wetland layers. Not intended for maps printed at map scales greater or more detailed than 1:10,000 scale (1 inch = 833.33 feet.)

1880s NOS T-Sheet Wetland Polygon Features is a 1:10,000-scale, polygon feature-based layer that includes information depicting historic wetlands for areas of coastal Connecticut during the 1880s. The layer depicts information found on topographic survey sheets (T-sheets) from the US Coast and Geodetic Survey (USC&GS), a predecessor to the National Ocean Service (NOS). The layer represents conditions at a particular point in time. The layer does not depict current conditions. The layer includes ground condition features such as wetland areas, interior wetland uplands, and interior wetand waterbodies. Semi-submerged marshes, referred to here as "low marshes," ocurring where it is possible to discern marsh-like features waterward of the shoreline are also included. Off shore and riverine islands and rocks may be included depending on the quality of their depiction on the t-sheet. It does not include any non wetland-centric elements that may have been depicted on the t-sheets such as buildings, roads, bridges, etc., nor does it include other off-shore features like mud flats, tidal flats, etc. Features are polygon locations that represent the approximate location of wetland areas and internal wetland features such as uplands or waterbodies. Shoreline, as depicted on the T-sheets that pre-date 1927, reference an approximation of Mean High Water (MHW). Although MHW is technically determined by averaging the height of the high water line, (HWL) the landward extent of the last high tide over a 19 year lunar cycle, USC&GS topographers appoximated MHW by familarizing themselves with the tidal conditions in a given area and noting the assorted physical characteristics of the beach. (For a more complete description of this and other shoreline indicators, the reader is directed to the following article: "Historical Shoreline Change: Error Analysis and Mapping Accuracy," Crowell, M., Leatherman, S., and Buckley, M. Journal of Coastal Research, Vol 7, No. 3, 1991, pp 839-852.) Attribute information is comprised of codes to identify individual features, encode wetland feature type information, and cartographically represent (symbolize) wetland features on a map. These codes were derived in part from the National Oceanic & Atmospheric Administration (NOAA) Coastal Services Center (CSC) Historic Digital Shoreline Capture project and modified by the State of Connecticut Department of Environmental Protection to address the inclusion of wetland areas. This data was compiled at 1:10,000 scale. This data is not updated. Purpose: 1880s NOS T-Sheet Wetland Polygon Features is 1:10,000-scale data. It depicts the location of historic wetland features for all of coastal Connecticut with the exception of the area of New Haven Harbor from the West River in West Haven to the New Haven/East haven town boundary. The features also extend slightly beyond the Connecticut state lines into Rye, New York and Westerly, Rhode Island. Use this layer to display historic wetlands. Since this data may be considered a crucial element in land use planning, determination of boundary extents, performing change studies for erosion and accretion examinations and other types of decision making this layer may also be used for analytic purposes. Use this layer with other 1:10,000-scale map data such as any other NOS T-sheet Shoreline or Wetland layers. Not intended for maps printed at map scales greater or more detailed than 1:10,000 scale (1 inch = 833.33 feet.)

Static flood inundation boundary extents were created along the entire shoreline of Lake Ontario in Cayuga, Jefferson, Monroe, Niagara, Orleans, Oswego, and Wayne Counties in New York by using recently acquired (2007, 2010, 2014, and 2017) light detection and ranging (lidar) data. The flood inundation maps, accessible through the USGS Flood Inundation Mapping Program website at https://www.usgs.gov/mission-areas/water-resources/science/flood-inundation-mapping-fim-program, depict estimates of the areal extent and water depth of shoreline flooding in 8 segments corresponding to adjacent water-surface elevations (stages) at 8 USGS lake gages on Lake Ontario. This item includes data sets for segment B - Lake Ontario at Hamlin Beach State Park near North Hamlin, NY (station number 04220209). These datasets demonstrate the estimated extent and depth of lake flooding at specific water levels of 1-foot increments from 247.0 ft to 251.0 ft (International Great Lakes Datum of 1985). In this study, wind and seiche effects were not represented; therefore, the flood inundation maps reflect five stages for Lake Ontario that are static for the entire shoreline area of the lake. This item is a package of flood inundation data for segment B - Lake Ontario at Hamlin Beach State Park near North Hamlin, NY (station number 04220209) including: 1) 1 shapefile showing 5 estimated flood extents as polygons, 2) 5 raster datasets showing the depth of the water at 5 flood stages, 3) 1 shapefile showing the study limit extent of segment B, and 4) a metadata file. The polygon flood extent shapefiles were developed from digital elevation models (DEMs) derived from the lidar to represent the estimated areal extent for five flood stages for segment B. The raster files depict the depth, in feet, of the water in the inundated areas along the shoreline of Lake Ontario during the five theoretical flood stages. The depth grids were created by subtracting the digital elevation model (DEM) values (in feet) from each of five raster files representing the flood extent at each constant water level (in feet). An approximately 100-meter buffer was used as the extent into the lake. First posted June 21, 2021, ver 1.0 Revised November 2021, ver 2.0 Version 2.0: This version of the dataset has the same data as version 1.0, but some shapefile attributes were renamed to be more accurate and clearer, and the depth-grid rasters were renamed to include the associated water surface elevation within the raster file name. Detailed version history is included in Version_History_LakeOntarioFIMDataRelease.txt. Version 1.0: This version is a package of flood inundation data for Lake Ontario including: 1) 8 shapefiles showing 40 estimated flood extents as polygons, 2) 40 raster datasets showing the depth of the water at 5 flood stages, divided into 8 shoreline segments, 3) 8 shapefiles showing the study limit extent of each segment, and 4) a metadata file.

A 6-in resolution 8-class land cover dataset derived from the 2017 Light Detection and Ranging (LiDAR) data capture. This dataset was developed as part of an updated urban tree canopy assessment and therefore represents a ''top-down" mapping perspective in which tree canopy overhanging features is assigned to the tree canopy class. The eight land cover classes mapped were: (1) Tree Canopy, (2) Grass\Shrubs, (3) Bare Soil, (4) Water, (5) Buildings, (6) Roads, (7) Other Impervious, and (8) Railroads. The primary sources used to derive this land cover layer were 2017 LiDAR (1-ft post spacing) and 2016 4-band orthoimagery (0.5-ft resolution). Object based image analysis was used to automate land-cover features using LiDAR point clouds and derivatives, orthoimagery, and vector GIS datasets -- City Boundary (2017, NYC DoITT) Buildings (2017, NYC DoITT) Hydrography (2014, NYC DoITT) LiDAR Hydro Breaklines (2017, NYC DoITT) Transportation Structures (2014, NYC DoITT) Roadbed (2014, NYC DoITT) Road Centerlines (2014, NYC DoITT) Railroads (2014, NYC DoITT) Green Roofs (date unknown, NYC Parks) Parking Lots (2014, NYC DoITT) Parks (2016, NYC Parks) Sidewalks (2014, NYC DoITT) Synthetic Turf (2018, NYC Parks) Wetlands (2014, NYC Parks) Shoreline (2014, NYC DoITT) Plazas (2014, NYC DoITT) Utility Poles (2014, ConEdison via NYCEM) Athletic Facilities (2017, NYC Parks) For the purposes of classification, only vegetation > 8 ft were classed as Tree Canopy. Vegetation below 8 ft was classed as Grass/Shrub. To learn more about this dataset, visit the interactive "Understanding the 2017 New York City LiDAR Capture" Story Map -- https://maps.nyc.gov/lidar/2017/ Please see the following link for additional documentation on this dataset -- https://github.com/CityOfNewYork/nyc-geo-metadata/blob/master/Metadata/Metadata_LandCover.md

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 layer that depicts the geographic area encompassed by and the boundary for the State of Connecticut with an additional linear shoreline feature separating the Connecticut mainland from the waters of Long Island Sound. The layer includes a polygon feature representing the Connecticut mainland, a polygon feature representing Connecticut waters in Long Island Sound and approximately 700 polygon features representing Connecticut islands in Long Island Sound. The layer is based on information from USGS topographic quadrangle maps published between 1969 and 1984 and latitude and longitude coordinates that define the boundary between the states of Connecticut and New York in Long Island Sound. Feature length and geographic area are encoded for linear and polygon features, respectively. This layer was originally published in 2005. Connecticut Mainland Polygon includes the polygon features of a layer named Connecticut Mainland. Connecticut Mainland is a 1:24,000-scale, polygon and line feature-based layer that depicts the geographic area encompassed by and the boundary for the State of Connecticut with an additional linear shoreline feature separating the Connecticut mainland from the waters of Long Island Sound. The layer includes a polygon feature representing the Connecticut mainland, a polygon feature representing Connecticut waters in Long Island Sound and approximately 700 polygon features representing Connecticut islands in Long Island Sound. The layer is based on information from USGS topographic quadrangle maps published between 1969 and 1984 and latitude and longitude coordinates that define the boundary between the states of Connecticut and New York in Long Island Sound. Feature length and geographic area are encoded for linear and polygon features, respectively. This layer was originally published in 2005.

Shellfish Area Classification Set:

The Connecticut Department of Environmental Protection cooperated with the Department of Agriculture, Bureau of Aquaculture to publish the Connecticut Shellfish Classification data. More recent information may be available from the Department of Agriculture since the time this information was originally published in 2007. For information or questions on shellfish area classifications contact the Connecticut Department of Agriculture, Bureau of Aquaculture (DA/BA). Mailing address: P.O. Box 97, Milford, CT, 06460, USA. Voice: 203-874-0696. Fax: 203-783-9976. E-mail: dept.agriculture@snet.net. Final authority for the classification of any shellfish area rests with the DA/BA. One of a set of three 1:24,000-scale datalayers that represent the classifications of shellfish growing waters for the State of Connecticut shoreline towns. This datalayer is composed of polygon features. The shellfishing areas are delineated and classified by the DA/BA, which is the state shellfish control authority in Connecticut. The Connecticut Department of Environmental Protection (DEP) applied information from the DA/BA to the hydrography data to create digital data of shellfish area classifications. DA/BA reassesses pollution sources and shellfish growing areas annually. The digital data is current to that effective date or last amended date recorded on the assessment date list (see supplemental information). This data is subject to change and the DA/BA may have more recent information for some areas. DEP cooperated with the DA/BA to publish the DA/BA Shellfish Area Classifications data. More recent shellfish classification information may now be available from DA/BA since the time this information was originally published in 2007. The three classification datalayers are feature based. Waterbodies, such as rivers and lakes and ponds, that appear as area features in the hydrography datalayer are classified in the Shellfish Area polygon shapefile. Smaller water bodies, such as streams and creeks, that appear as line features in the hydrography datalayer are classified in the Shellfish Area line shapefile. A separate point shapefile contains the marinas that are classified by DA/BA. Contact DA/BA or local health departments for additional information regarding the classification of marinas and anchorage areas. Three additional datalayers add to the classification picture. Markers, such as buoys, demarcation signs and piers, are referred to in DA/BA text describing the shellfish area classifications. The town boundary lines as depicted on DA/BA oyster/shellfish ground charts extend to the Connecticut/New York mid-Long Island Sound boundary line. The jurisdiction line on the charts indicates the boundary between state and town jurisdictional control over shellfish grounds. The jurisdiction line is separate from the shellfishing area classifications

The Connecticut Department of Environmental Protection cooperated with the Department of Agriculture, Bureau of Aquaculture to publish the Connecticut Shellfish Classification data. More recent information may be available from the Department of Agriculture since the time this information was originally published in 2006. For information or questions on shellfish area classifications contact the Connecticut Department of Agriculture, Bureau of Aquaculture (DA/BA). Mailing address: P.O. Box 97, Milford, CT, 06460, USA. Voice: 203-874-0696. Fax: 203-783-9976. E-mail: dept.agriculture@snet.net. Final authority for the classification of any shellfish area rests with the DA/BA. This 1:24,000 scale layer depicts town boundary lines as shown on DA/BA oyster/shellfish ground charts. These boundary lines extend to the Connecticut/New York mid-Long Island Sound boundary line. This datalayer is composed of polygon features. See also the corresponding line feature class (Shellfish Area Town Line). This layer is intended to be used for cartographic purposes in conjunction with the 1:24,000 scale Shellfish Area Classifications data that represent the classifications of shellfish growing waters for the State of Connecticut shoreline towns. Shellfish Bed Jurisdiction is a related datalayer that depicts the jurisdiction line on the charts, i.e., the boundary between state and town jurisdictional control over shellfish grounds. It is referenced here to clarify that in some cases the town boundary lines of the Shellfish Area Town Poly layer and the Shellfish Bed Jurisdiction layer are different and are so noted. General Information Applicable to Shellfish Classifications Datalayers: The shellfishing areas are delineated and classified by the DA/BA, which is the state shellfish control authority in Connecticut. The Connecticut Department of Environmental Protection (DEP) applied information from the DA/BA to the hydrography data to create digital data of shellfish area classifications. DA/BA reassesses pollution sources and shellfish growing areas annually. The digital data is current to that effective date or last amended date recorded on the assessment date list (see supplemental information). This data is subject to change and the DA/BA may have more recent information for some areas. The shellfish datalayers that can be used together as a group include Shellfish Area Classification Line, Shellfish Area Classification Poly, Shellfish Area Marina, Shellfish Area Marker, Shellfish Area Town Poly, Shellfish Area Town Line, Shellfish Bed Jurisdiction, and Connecticut Managed Shellfish Beds.

Boundaries (polygons) of NYS Senate districts with name and contact info for each member of the NYS Senate. Districts based on Legislative Task Force redistricting 2022. Information on representative based on Senate website as of 6-6-2025. Please contact Geospatial Services at nysgis@its.ny.gov if you have any questions. All district boundaries have been clipped to the NYS shoreline. This affects the following counties: Bronx, Cayuga, Chautauqua, Clinton, Erie, Essex, Franklin, Jefferson, Kings, Monroe, Nassau, New York, Niagara, Orleans, Oswego, Queens, Richmond, St. Lawrence, Suffolk, Washington, Wayne, Westchester.

This dataset depicts the districts of the U.S. Coast Guard. For more information, please visit the Coast Guard's website.View Dataset on the Gateway