State of Connecticut, Department of Environmental Protection, U.S. Geological Survey, National Mapping Program (data compiler), MassGIS (data compiler and publisher), New Jersey Department of Environmental Protection (data compiler and publisher), State of New York (data compiler and publisher), and Rhode Island Geographic Information System (data compiler and publisher), 20081020, CT_VICINITY_GEO.SHP: Connecticut and Vicinity State Boundary Polygon (Geographic, WGS84): State of Connecticut, Department of Environmental Protection, Hartford, Connecticut, USA.This is part of the following larger work.Online Links:
- <http://www.ct.gov/dep>
- <https://pubs.usgs.gov/of/2009/1231/data/basemaps/shoreline/ct_vicinity_geo.zip>
Poppe, L.J., Danforth, W.W., McMullen, K.Y., Parker, C.E., Lewit, P.G., and Doran, E.F., 2010, Integrated Multibeam and LIDAR Bathymetry Data Offshore of New London and Niantic, Connecticut: Open-File Report 2009-1231, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is D_WGS_1984.
The ellipsoid used is WGS_1984.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257224.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Value | Definition |
---|---|
Land | Land Feature - Mainland or island |
Water | Water Feature - Marine and selected large fresh waterbody |
Value | Definition |
---|---|
Connecticut | State of Connecticut |
Other States | Massachusetts, New Jersey, New York, Rhode Island |
Water | Water |
Value | Definition |
---|---|
'blank' | No State designation. Used to encode open water features. |
CT | State of Connecticut |
MA | Commonwealth of Massachusetts |
NJ | State of New Jersey |
NY | State of New York |
RI | State of Rhode Island |
Value | Definition |
---|---|
'blank' | No State designation. Used to encode open water features. |
Connecticut | State of Connecticut |
Massachusetts | Commonwealth of Massachusetts |
New Jersey | State of New Jersey |
New York | State of New York |
Rhode Island | State of Rhode Island |
Value | Definition |
---|---|
True | Polygon feature you can label with MAP_LABEL attribute |
False | Polygon feature not to label with MAP_LABEL attribute |
Text value
STATE_NAME values only for polygon features where MAP_LABEL = 'True' and STATE_COD = 'CT'.
STATE_NAME values only for polygon features where MAP_LABEL = 'True' and STATE_COD not equal to 'CT'.
Coordinates defining the features.
Positive real numbers that are automatically generated when the dataset was loaded into the GeoDatabase format..
Range of values | |
---|---|
Minimum: | 69.6815153354 |
Maximum: | 4075494.1648300001 |
Units: | feet |
Resolution: | 0.0000000001 |
Please credit the Connecticut Department of Environmental Protection as the originator of the dataset.
860-424-3540 (voice)
860-424-4058 (FAX)
dep.gisdata@po.state.ct.us
This data layer is intended for geographic display of Connecticut state boundaries at statewide and regional levels. This data layer is provided as a basemap for overlaying bathymetry data.
State of Connecticut, Department of Environmental Protection (da, and U.S. Geological Survey, National Mapping Program (data compiler), 19940101, Connecticut Towns: State of Connecticut, Department of Environmental Protection, Hartford, Connecticut, USA.Online Links:
Maine Office of Geographic Information Systems (MEGIS), 20050622, metwp24_06302005: Maine Office of Geographic Information Systems (MEGIS), Augusta ME.Online Links:
MassGIS, 2002, Communtity Boundaries (Towns): MassGIS, Boston, Massachusetts, USA.Online Links:
Complex Systems Research Center, University of New Hampshire, 19920101, New Hampshire Political Boundaries at 1:24,000 Scale: Systems Research Center, University of New Hampshire, Durham, New Hampshire, USA.Online Links:
NJ Department of Environmental Protection (NJDEP), Office of Information Resources Management (OIRM), and Bureau of Geographic Information Systems (BGIS), 20050817, NJDEP Municipality Boundaries for the State of New Jersey (Clipped to Coast): New Jersey Department of Environmental Protection (NJDEP), Trenton, New Jersey, USA.Online Links:
Unknown, Unknown, New York State Municipalities: Unknown, Unknown.Online Links:
Rhode Island Geographic Information System (RIGIS), 1989, esri-state-ritownp: Rhode Island Geographic Information System (RIGIS), Providence, Rhode Island, 02908-5872, USA.Online Links:
Vermont Center for Geographic Information (VGI), 20051117, BoundaryOther_BNDHASH: Vermont village, town, county, state and RPC boundaries, from best available sources 2005A, Vermont Center for Geographic Information, GIS Database Administrator, Waterbury, Vermont, 05676, USA.Online Links:
State of Connecticut, Department of Environmental Protection (da, U.S. Geological Survey, National Mapping Program (data compiler), MassGIS (data compiler and publisher), Maine Office of Geographic Information Systems (data compiler and publisher), Complex Systems Research Center, University of New Hampshire (data compiler, New Jersey Department of Environmental Protection (data compiler and publisher), State of New York (data compiler and publisher), Rhode Island Geograrhic Information System (data compiler and publisher), and Vermont Center for Geograrhic Information (data compiler and publisher), 2006, Northeastern United States Political Boundary Master: State of Connecticut, Department of Environmental Protection, Hartford, Connecticut, USA.Online Links:
State of Connecticut, Department of Environmental Protection (da, U.S. Geological Survey, National Mapping Program (data compiler), MassGIS (data compiler and publisher), Maine Office of Geographic Information Systems (data compiler and publisher), Complex Systems Research Center, University of New Hampshire (data compiler, New Jersey Department of Environmental Protection (data compiler and publisher), State of New York (data compiler and publisher), Rhode Island Geographic Information System (data compiler and publisher), and Vermont Center for Geographic Information (data compiler and publisher), 2006, Northeastern United States State Boundary: State of Connecticut, Department of Environmental Protection, Hartford, Connecticut, USA.Online Links:
State of Connecticut, Department of Environmental Protection (da, U.S. Geological Survey, National Mapping Program (data compiler), MassGIS (data compiler and publisher), Maine Office of Geographic Information Systems (data compiler and publisher), Complex Systems Research Center, University of New Hampshire (data compiler, New Jersey Department of Environmental Protection (data compiler and publisher), State of New York (data compiler and publisher), Rhode Island Geographic Information System (data compiler and publisher), and Vermont Center for Geographic Information (data compiler and publisher), 20060703, Northeastern United States State Boundary Polygon: State of Connecticut, Department of Environmental Protection, Hartford, Connecticut, USA.Online Links:
State of Connecticut, Department of Environmental Protection (da, U.S. Geological Survey, National Mapping Program (data compiler), MassGIS (data compiler and publisher), Maine Office of Geographic Information Systems (data compiler and publisher), Complex Systems Research Center, University of New Hampshire (data compiler, New Jersey Department of Environmental Protection (data compiler and publisher), State of New York (data compiler and publisher), Rhode Island Geographic Information System (data compiler and publisher), and Vermont Center for Geographic Information (data compiler and publisher), 20060703, Northeastern United States State Boundary Polygon: State of Connecticut, Department of Environmental Protection, Hartford, Connecticut, USA.Online Links:
Person who carried out this activity:
860-424-3540 (voice)
Data sources produced in this process:
Person who carried out this activity:
860-424-3540 (voice)
Data sources produced in this process:
Person who carried out this activity:
860-424-3540 (voice)
Data sources produced in this process:
Person who carried out this activity:
860-424-3540 (voice)
Data sources produced in this process:
Person who carried out this activity:
508-548-8700 x2277 (voice)
508-457-2310 (FAX)
kmcmullen@usgs.gov
Data sources produced in this process:
All attributes have valid values. These attribute values are directly based on or derived from attribute and or spatial (feature location) information supplied by the respective data sources. This information does not depict official boundaries established by the respective state and municipal governments. It may contain some state boundary line errors for all states.
The horizontal positional accuracy of this data is assumed to approximate the United States National Map Accuracy Standards for 1:24,000 scale maps. According to this standard, not more than 10 percent of the locations tested are to be in error by more than 1/50 inch (40 feet) measured on the publication scale of a USGS 7.5 minute topographic quadrangle map. However, while appending the data sources together from the respective states, the compiler noticed variations in feature content definition within each data source (most notably along the coastline) and differences in digitizing quality of features along the boundaries between different states where such comparisons could be made. Some state boundaries were not as coincident as expected and some were more smoothly digitized than others, reflecting differences in their data sources and automation procedures. For example, some states based town boundary information on 1:24,000-Scale Digital Line Graphs and Quadrangle Map files from the USGS and others digitized this information directly from unstable paper copies of USGS 1:24,000-scale Topographic quadrangle maps.
This map layer includes boundaries for Connecticut, Massachusetts, Maine, New Hampshire, New Jersey, New York, and Rhode Island. Data completeness reflected by the content of the original data sources.
Polygon features conform to the following topological rules. Polygons are single part. There are no duplicate polygons. Polygons do not self overlap. Polygons do not overlap other polygons. Polygons are bound by lines. Line features conform to the following topological rules. Lines are single part. There are no duplicate lines. Lines do not self overlap. Lines do not overlap other lines. Lines intersect only at nodes, and nodes anchor the ends of all lines. Lines do not overshoot or undershoot other lines they are supposed to meet and intersect. The tests of logical consistency were performed by the State of Connecticut using ESRI ArcInfo software to maintain feature topology in ArcInfo coverage format. The data is topologically clean. The ArcInfo Clean function was repeatedly used following edits to verify topology and enforce a minimum distance between vertices of 4 feet (fuzzy tolerance) and a minimum allowed overshoot length of 10 feet (dangle length).
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- None. The data is in the public domain and may be redistributed.
- Use_Constraints:
- No restrictions or legal prerequisites for using the data. The data is suitable for use at appropriate scale, and is not intended for maps printed at scales greater or more detailed than 1:24,000 (1 inch = 2,000 feet). Although this data set has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection as to the accuracy of the data and or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata. When printing this data on a map or using it in a software application, analysis, or report, please acknowledge the State of Connecticut, Department of Environmental Protection as the data publisher. For example, include the following data source description when printing this layer on a map: Political Boundaries - From the Northeastern United States State Boundary layer, published by CT DEP. Source map scale is 1:24,000.
860-424-3540 (voice)
860-4244058 (FAX)
dep.gisdata@po.state.ct.us
Downloadable Data of the Connecticut and Vicinity State Boundary
Neither the U.S. Government, the Department of the Interior, nor the USGS, NOAA, nor the Connecticut Department of Environmental Protection (CT DEP), nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS or CT DEP in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Data format: | A zip file containing the geospatial data, metadata describing the data set, and a browse graphic showing the data layer coverage and extent. in format SHP (version ArcGIS 9.2) ESRI Polygon Shapefile Size: 5.939 |
---|---|
Network links: | <https://pubs.usgs.gov/of/2009/1231/data/basemaps/shoreline/ct_vicinity_geo.zip> <https://pubs.usgs.gov/of/2009/1231/html/catalog.html> |
Media you can order: | CD-ROM (Density 640 Mbytes) (format ISO9660) |
The information is in ESRI shapefile format. The user must have a geographic information sytem (GIS) application to capable of importing the information. The user must have software capable of uncompressing archived zip files.
508-548-8700 x2314 (voice)
508-457-2310 (FAX)
lpoppe@usgs.gov