MassGIS hosts a variety of online mapping applications. OLIVER is MassGIS' premier data viewer and download application. MassGIS also provides several specialized or theme-focused viewers, which are described below.
State agencies interested in including GIS and mapping capabilities in their web sites should refer to MassGIS' Web Mapping Services Catalog. Developers can learn more about MassGIS' Geospatial Web Services.
The Massachusetts Office of Coastal Zone Management's (CZM) online mapping tool is a version of OLIVER that can be used to search and display spatial data pertaining to the Massachusetts coastal zone. Users can:
... All right over the Web, within your web browser.
Displays several categories of data, including "Human Dimension" (Census, land use/land cover, roads) along with many coastal and offshore data, focusing on Boston Harbor.
Displays coastal and offshore features pertaining to the Massachusetts Ocean Management Plan, including management areas (multi-use, prohibited, provisional, wind energy), Special, Sensitive or Unique Resources (e.g., water bird and whale habitats) water-dependent uses, and many more.
Displays information on coastal shoreline change rates for several time periods, generally from the mid-1800s to 1994.
Read the description of the Massachusetts Shoreline Change Project and at the bottom of the page click the link to proceed to the Shoreline Change Browser to view online maps and transect data.
This viewer can be used to display and find information on Areas of Critical Environmental Concern. Developed by the Department of Conservation and Recreation.
Displays dams with the option of zooming to dam id or filtering list of dams by town.
This viewer can be used to find information on how the Watershed Protection Act (WsPA) affects parcels in the Quabbin, Ware and Wachusett watersheds. Users can search by city/town, sheet id and parcel id, or address. The Watershed Protection Act (WsPA) regulates land use and activities within critical areas of the Quabbin Reservoir, Ware River and Wachusett Reservoir watersheds for the purpose of protecting the quality of drinking water. See http://www.mass.gov/dcr/wspa for more information on the Watershed Protection Act.
DFG Wildlands Map
THIS VIEWER IS CURRENTLY UNAVAILABLE DUE TO REVISIONS
Wildlife Management Areas are places for wildlife and people. The Department of Fish and Game's WMA Map Viewer will help you create maps of wild places to explore with your rod and reel, bow or gun, camera, or binoculars! See http://www.mass.gov/eea/agencies/dfg/dfw/maps-destinations/wildlife-management-areas.html for details on WMAs.
Displays neighborhoods across the state with high minority, non-English speaking and low-income populations (based on 2010 U.S. Census data). Such areas are the focus of EOEEAs EJ Policy, which was developed to use state resources to ensure that EJ populations receive a strong voice in environmental decision-making.
Displays environmental data suitable for a wind turbine site assessment. Many datalayers include annual mean wind speeds, potential wind development sites, 1000 ft residential wind buffer, environmental exclusions and concerns, roads, hydrography, contours, landuse, parcel boundaries, and others. Layers may be turned on and off.
Developed by the Executive Office of Housing and Economic Development and MassGIS, this online interactive mapping tool allows users to view the Commonwealth’s priority housing and economic development areas. Included are editing tools for state agency users to add polygons to see how their policies, programs and projects align with housing and economic development efforts.
The MassDEP Priority Resource Map displays environmental data that appears on a Numerical Ranking System (NRS) site assessment map as required by MassDEP under the Massachusetts Contingency Plan or MCP (310 CMR 40.0000), which sets out the requirements for reporting, assessing and remediating contaminated sites.
However, If you want to create and print an MCP Numerical Ranking System (NRS) Site Map go to
The information shown on this map comes from many different sources, at different scales. Some data may not be complete, some generalization may occur, and some information may not have been field verified. The Priority Resource Map is scale sensitive and will only draw when the map viewer is zoomed in to an appropriate, large scale. At smaller scales only the underlying base map will be displayed.
The MassDEP Title 5 Setback Areas Map displays the estimated minimum setback distances from surface water and wetlands as required under 310 CMR 15.000 (Title 5), for the siting, construction, inspection, upgrade and expansion of on-site sewage treatment and disposal systems, including septic tanks, holding tanks, pump chambers, treatment units and soil absorption systems. Title 5 regulations have minimum setback requirements and nitrogen loading requirements for the installation of septic systems in certain areas. This map was created to be used by the public as a tool to aid in identifying water resources of concern for purposes of Title 5. The map generally shows the natural resources that require protection from these systems. The map is not to be used in place of any necessary survey.
The information shown on this map comes from many different sources, at different scales. Some data may not be complete, some generalization may occur, and some information may not have been field verified. The Title 5 Setback Areas Map is scale sensitive and will only draw when the map viewer is zoomed in to an appropriate, large scale. At smaller scales only the underlying base map will be displayed.
The MassDEP Water Supply Protection Areas Map displays Community and Non-community Public Water Supply (PWS) ground and surface water sources with Interim Wellhead Protection Areas (IWPA), Approved Wellhead Protection Areas (Zone II) and Surface Water Protection Areas (Zone A, Zone B and Zone C) as defined in the Commonwealth of Massachusetts Drinking Water Regulations (310 CMR 22.02).
The information shown on this map comes from many different sources, at different scales. Some data may not be complete, some generalization may occur, and some information may not have been field verified. The Water Supply Protection Areas Map is scale sensitive and will only draw when the map viewer is zoomed in to an appropriate,large scale. At smaller scales only the underlying base map will be displayed.
The Wetland and Wetland Change Areas Map displays MassDEP developed wetland areas interpreted from 1:12,000 scale, stereo color-infrared (CIR) photography captured in 1990, 1991, 1992, 1993, 1999 and 2000. The map also includes Wetland Change areas interpreted from three separate iterations of MassGIS orthophotography.
The wetland and wetland change areas represented on this map have been determined solely through photo-interpretation. They do not represent, and should not be used as, wetlands delineation under the Wetlands Protection Act (M.G.L. c. 131, sec. 40) and the implementing regulations (310 CMR 10.00 et seq.).
The Wetland and Wetland Change Areas Map is scale sensitive and will only draw when the map viewer is zoomed in to an appropriate, large scale. At smaller scales only the underlying base map will be displayed.
The Mass Audubon Butterfly Atlas Viewer allows you to interactively create your own maps of all or a portion of the state, identify all species found in a survey block during the Atlas period, and overlay butterfly distribution on road, land use and aerial photograph backgrounds.
The Mass Audubon Breeding Bird Atlas Viewer allows you to interactively create your own maps of all or a portion of the state, identify all species found in a survey block during the Atlas period, and overlay bird distribution with roads and topographic backgrounds.
Displays two 2008 layers developed by the Natural Heritage and Endangered Species Program - Priority Habitats and Estimated Habitats. For more information on these layers see their datalayer description pages: Priority Habitats | Estimated Habitats .
Displays two layers developed by the Natural Heritage and Endangered Species Program - BioMap2 Core Habitat and BioMap2 Critical Natural Landscapes. For more information on this program see: BioMap2 .
Displays the Commonwealth's Senate and House legislative districts. Users may search for their district based on municipality, legislator, or district name. When identifying the districts, the results contain links to their Senate and House representative's Web pages.
Displays several demographic categories of data, including Population/Age, Housing, Language, Income, Citizenship, and Race, all based on the 2000 U.S. Census. Users may search for their City or Town and view detailed demographic statistics.
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Last Updated 10/16/2013