You can create a map for any area across the state by adding map layers of your choice to MassMapper, or view a single-topic map. MassGIS also has many maps and web services at ArcGIS Online. MassGIS does not provide any paper maps.

This resources is metadata for Aeroradioactivity and Generalized Geologic Maps of Parts of New York, Connecticut, Rhode Island and Massachusetts, USGS GP-359, 1:250000 scale. Airborne near surface gross gamma mapping, includes geologic discussion and explanatory text. Documents are US Geological Survey maps. The data are available in the following formats: web map service, ESRI service and a zipped folder with TIFF and TFW files of the maps.The data was provided by the Connecticut Geological Survey, Department of Energy and Environmental Protection, and made available for distribution through the National Geothermal Data System.

This map layer shows currently operating marine aquaculture facilities based on the best available information from state aquaculture coordinators and programs. Currently, the dataset includes sites in Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut, Eastern Suffolk County, New York, and offshore federal waters in the Northeast. It does not yet include other sites in New York State. The Northeast Ocean Data Working Group is collaborating with aquaculture coordinators in each state to fill data gaps and to improve accuracy of existing datasets. Because of inconsistencies among the datasets, map users are encouraged to read the map layer’s metadata and the metadata for each state’s data. Aquaculture in the northeast region is a diverse, vibrant industry with a large potential for growth. Massachusetts is ranked as the seventh largest producer of farmed shellfish in the nation. Oysters and other shellfish are predominant products of the industry, however finfish hatcheries comprise a significant segment of the sector as well, especially in Maine and New Hampshire. This layer depicts current working marine aquaculture facilities in the northeast region, drawing on the best available information from Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut and Eastern Suffolk County, New York aquaculture coordinators and programs. The Northeast Ocean Data Portal working group is continuing to work with aquaculture coordinators in each state to fill current data gaps and improve the accuracy of existing datasets. As such, this dataset should be considered a work in progress. The data user is encouraged to read this and the metadata of each individual states’ data carefully, as geometry, attribute details, and timeliness are not necessarily consistent among datasets used to develop this layer. Details of each state’s data source are described in the data processing section.View Dataset on the Gateway

This ArcGIS StreetMap Premium North America 2023 Release 3 map (based on HERE 2023 Q2 vintage) is designed for use in ArcGIS Pro and contains data for the U.S. Northeast Region supporting map display, geocoding and routing. The U.S. Northeast Region includes Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, and Vermont.

Note: Only the latest version of the map is available for download. See the 
Pro map coverage 
and click on the map to access details (including file size, updated date, and data source).

The data are those used to make a large-format, colored map of earthquakes in the northeastern United States and adjacent parts of Canada and the Atlantic Ocean (Wheeler, 2000; Wheeler and others, 2001; references in Data_Quality_Information, Lineage). The map shows the locations of 1,069 known earthquakes of magnitude 3.0 or larger, and is designed for a non-technical audience. Colored circles represent earthquake locations, colored and sized by magnitude. Short descriptions, colonial-era woodcuts, newspaper headlines, and photographs summarize the dates, times of day, damage, and other effects of notable earthquakes. The base map shows color-coded elevation, shaded to emphasize relief.

This data set contains the 1995-era or early-date classifications of US coastal zone 65 and can be used to analyze change. This imagery was collected as part of the Multi-Resolution Land Characteristics program in a multi-agency effort to provide baseline multi-scale environmental characteristics and to monitor environmental change. This data set utilized 10 full or partial Landsat scenes which were analyzed according to the Coastal Change Analysis Program (C-CAP) protocol to determine land cover. Note: These data were reprojected from their native projection into North American Datum 1983 (NAD83) / Massachusetts State Plane coordinate system, Mainland Zone (Fipszone 2001) meters by the Massachusetts Office of Coastal Zone Management on Oct. 12, 2006.

SUPPLEMENTAL INFORMATION: This Classification and change analysis is based on Landsat TM scenes: p11r30 (08/14/1995), p11r31 (09/12/1994), p12r30 (07/04/1995), p12r31 (08/21/1995), p12r32 (06/15/1994), p13r30 (07/29/1996), p13r31 (08/09/1994), p13r32 (08/09/1994), p14r29 (05/31/1995)

This data set represents the extent of the New York and New England carbonate-rock aquifers in the states of New York, Vermont, Maine, Massachusetts, Connecticut, New Jersey, and Pennsylvania.

Geologic-Geographic Information Systems (GIS) data related to Appalachian National Scenic Trail is delivered in a data package Zip (.zip) file. These data are a product of the NPS Geologic Resources Inventory (GRI) program, which is funded by the Inventory and Monitoring (I&M) Division and administered by the NPS Geologic Resources Division (GRD).Geologic-GIS data for Appalachian National Scenic Trail consists of geologic map footprints of available maps that intersect the 7.5’ quadrangles of interest (QOI) for the park. Each footprint depicts the respective map’s extent and contains information conveying map name, scale, publication year and type. The footprints are joined using a footprint ID as a key to a standalone table that contains a formal map reference, a Boolean showing if GIS data is available, additional map notes, and a URL link t o where the map can be downloaded, if available. Geologic-GIS map footprints are provided in ESRI file geodatabase format supported by a Pro 3.X map (.mapx) file. The Pro 3.x map displays the footprint data in thematic layers categorizing and symbolizing the footprints by publication year, map type, and scale.

This map is intended for use by the Berkshire Taconic Regional Conservation Partnership. The data used in the application are compiled from available data on ArcGIS Online. Data sources include the Litchfield Hills Greenprint, the State of Connecticut Department of Energy and Environmental Protection, Massachusetts Deparmtent of Conservation and Recreation, State of Vermont, New York State Office of Parks and Historic Preservation, New York State DEC, the United States Census Bureau, the University of Connecticut, and the United States Department of Agriculture, Natural Resources Conservation Service. This application is powered by ESRI ArcGIS Server technology.This application uses the best available data and all efforts are made to ensure accuracy, however, data may be inaccurate or incomplete. Please use this data for reference purposes only. HVA/Berkshire Taconic RCP assumes no liability for inaccurate information.

Debris flows, debris avalanches, mud flows and lahars are fast-moving landslides that occur in a wide variety of environments throughout the world. They are particularly dangerous to life and property because they move quickly, destroy objects in their paths, and can strike with little warning. The purpose of this map is to show where debris flows have occurred in the conterminous United States and where these slope movements might be expected in the future.

Aeromagnetic data were collected along flight lines by instruments in an aircraft that recorded magnetic-field values and locations. In the earlier days of surveying, the only way to represent this data was to generate an analog map with contour lines. This dataset is a representation of the digitized contour lines either by following the lines or by choosing the intersection of the contour and flight-line to create a value of the magnetic field. The values presented are latitude, longitude, and map magnetic-field values.

This map layer shows nest sites of coastal bird species in Connecticut, Massachusetts, New Hampshire, New York and Rhode Island. Multiple records may be available at the same feature location. The data were created from NOAA's Environmental Sensitivity Index, which was developed to characterize shorelines based on their sensitivity to spilled oil in order to understand the potential risk to these species. The ESI data were collected, mapped, and digitized to provide environmental data for oil spill planning and response. The Clean Water Act with amendments by the Oil Pollution Act of 1990 requires response plans for immediate and effective protection of sensitive resources.View Dataset on the Gateway

This ArcGIS Map Package contains information on brook trout occupancy in the southern portion of the brook trout range (PA and south). Fish sample data from a number of state and federal agencies/organizations were used to define patches for brook trout as groups of occupied contiguous catchment polygons from the National Hydrography Dataset Plus Version 1 (NHDPlusV1) catchment GIS layer. After defining patches, NHDPlusV1 catchments were assigned occupancy codes. Then state and federal agencies reviewed patches and codes to verify data accuracy. A similar effort is currently being conducted by the Eastern Brook Trout Joint Venture to develop occupancy data for the remainder of the brook trout range including states of New York, Maine, New Hampshire, Connecticut, Vermont, Massachusetts, Rhode Island, and Ohio. This ArcGIS Map Package contains data for the entire southern portion of the brook trout range with preset symbology that displays brook trout occupancy. The Map Package also includes the same information clipped into seperate layers for each state. State information is provided for the convenience of users that are interested in data for only a particular state. Additional layers displaying state boundaries, quadrangle maps, and the brook trout range are also included as spatial references.

Airports Polygon is a 1:24,000-scale, feature-based layer that includes all airport features depicted on all of the U.S. Geological Survey (USGS) 7.5 minute topographic quadrangle maps that cover the State of Connecticut and are listed on the Federal Aviation Administration (FAA) "Airport Data (5010) & Contact Information" June 5, 2008 report. Airports in New York, Massachusetts and Rhode Island that are near the Connecticut state boundary are included. Airports that are listed by FAA and are visible on aerial photography (Connecticut 2004 Orthophotos and Connecticut 2006 NAIP Color Orthophotos from National Agriculture Imagery Program) are included. Airports that are listed by FAA but are not visible on aerial photography are not included. All airports listed by FAA are included in a separate point feature-based layer, Airport FAA CT. The airport point locations were generated from latitude and longitude coordinates contained in the FAA report and all the attribute information in the report was included. The airport layer is based partly on information from USGS topographic quadrangle maps published between 1969 and 1984 which does not represent airports in Connecticut at any one particular point in time. The layer does depict current conditions as to airports listed by FAA and having location identification codes and visible on aerial photography of 2004 and 2006. The layer delineates airports and heliports. It includes airport name, airport location code, type of facility, public or private use of facility and state the airport is located in. It does not include airport elevation, flight schedule, runway capacity, or ownership information. Features are polygonal and generally depict landing strips and perimeters for large and small airports and helicopter landing pads. Attribute information allows to cartographic representation (symbolize) and labeling of these features on a map. This layer was originally published in 1994 and slightly updated in 2005.

This dataset consists of cartographic data in digital line graph (DLG) form for the northeastern states (Connecticut, Maine, Massachusetts, New Hampshire, New York, Rhode Island and Vermont). Information is presented on two planimetric base categories, political boundaries and administrative boundaries, each available in two formats: the topologically structured format and a simpler format optimized for graphic display. These DGL data can be used to plot base maps and for various kinds of spatial analysis. They may also be combined with other geographically referenced data to facilitate analysis, for example the Geographic Names Information System.

Hopkins Memorial Forest boundary derived from parcel data and representative of land acquisition history. Parcel data sourced from Massachusetts, New York, and Vermont.

These ESI data were collected, mapped, and digitized to provide environmental data for oil spill planning and response. The Clean Water Act with amendments by the Oil Pollution Act of 1990 requires response plans for immediate and effective protection of sensitive resources. The ESI data include information for three main components: shoreline habitats, sensitive biological resources, and human-use resources. ESI MAPS SHOULD NOT BE USED FOR NAVIGATIONAL PURPOSES. Source data used in the development of these regional atlases range from 1900 to 2005 with much of the data dated from the 1980s, 1990s, to 2005. Source data dates are extensively documented in the included metadata and include the following DE_NJ_PA, data range 1969-1995, compiled 1995, HudsonRiver data range 1942-2005, compiled 2005, Massachusetts data range 1978-1998, compiled 1998, New Hampshire data range 1948-2003, compiled 2003, and RI_CT_NY_NJ data range 1900-2001, compiled 1999.

This atlas update adds data formats to those originally released to accommodate new technologies of digital mapping. The underlying data have not been updated since the atlas publication dates shown. Each ESI atlas listed is provided in a variety of GIS formats, including a personal Geodatabase for use with the ESRI ArcGIS product line. An .mxd file, created in ArcMap 9.3 is also included. This mapping document provides links to all of the data tables and symbolization of the layers using the standardized ESI colors and hatch patterns. Layer files are also supplied. These, together with the associated geodatabase, can be used in other mapping projects to define the symbology and links established in the original ESI .mxd file.

PDF files of the map pages are also included. These PDFS now have the seasonality pages attached to the appropriate map document. This should make it easier to print and distribute individual maps and insure that the supporting information is always included. The GIS data are also provided in ARC Export .e00 format, as shape files with an ArcView 3.x project and in MOSS format. Database files are included in text and .e00 format. Each area directory contains a readme file which shows the area of coverage and gives a bit more description of the various file formats included.

This dataset depicts the Naval Undersea Warfare Center Division Newport (NUWCDIVNPT) Testing Range. The Naval Undersea Warfare Center Division Newport (NUWCDIVNPT) Testing Range consists of waters within Narragansett Bay, nearshore waters of Rhode Island Sound, Block Island Sound, and coastal waters of New York, Connecticut, and Massachusetts. The Testing Range located near NUWCDIVNPT is an area used for research, development, test, and evaluation of Undersea Warfare systems, and, as necessary, to support other Navy and DoD operations. The NUWCDIVNPT testing range focuses on the undersea aspects of warfare and is therefore structured to test systems such as torpedoes and unmanned underwater vehicles, and contains several sea space restricted areas. View Dataset on the Gateway

This map is designed to be used as a basemap by marine GIS professionals and as a reference map by anyone interested in ocean data. The basemap includes bathymetry, marine water body names, undersea feature names, and derived depth values in meters. Land features include administrative boundaries, cities, inland waters, roads, overlaid on land cover and shaded relief imagery.The map was compiled from a variety of best available sources from several data providers, including General Bathymetric Chart of the Oceans GEBCO_08 Grid version 20100927 and IHO-IOC GEBCO Gazetteer of Undersea Feature Names August 2010 version (https://www.gebco.net), National Oceanic and Atmospheric Administration (NOAA) and National Geographic for the oceans; and DeLorme, HERE, and Esri for topographic content. The basemap was designed and developed by Esri.The Ocean Basemap currently provides coverage for the world down to a scale of ~1:577k; coverage down to ~1:72k in United States coastal areas and various other areas; and coverage down to ~1:9k in limited regional areas. You can contribute your bathymetric data to this service and have it served by Esri for the benefit of the Ocean GIS community. For details, see the Community Maps Program.Tip: Here are some famous oceanic locations as they appear in this map. Each URL below launches this map at a particular location via parameters specified in the URL: Challenger Deep, Galapagos Islands, Hawaiian Islands, Maldive Islands, Mariana Trench, Tahiti, Queen Charlotte Sound, Notre Dame Bay, Labrador Trough, New York Bight, Massachusetts Bay, Mississippi Sound

The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States (https://doi.org/10.5066/F7WH2N65) represents a seamless, spatial database of 48 State geologic maps that range from 1:50,000 to 1:1,000,000 scale. A national digital geologic map database is essential in interpreting other datasets that support numerous types of national-scale studies and assessments, such as those that provide geochemistry, remote sensing, or geophysical data. The SGMC is a compilation of the individual U.S. Geological Survey releases of the Preliminary Integrated Geologic Map Databases for the United States. The SGMC geodatabase also contains updated data for six States and seven entirely new State geologic maps that have been added since the preliminary databases were published. Numerous errors have been corrected and enhancements added to the preliminary datasets using thorough quality assurance/quality control procedures. The SGMC is not a truly integrated geologic map database because geologic units have not been reconciled across State boundaries. However, the geologic data contained in each State geologic map have been standardized to allow spatial analyses of lithology, age, and stratigraphy at a national scale. A full discussion of the procedures and methodology used to create this dataset is available in the accompanying report: Horton, J.D., San Juan, C.A., and Stoeser, D.B, 2017, The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States: U.S. Geological Survey Data Series 1052, 46 p., https://doi.org/10.3133/ds1052.