/December 2013/ *Photo-interpreted areas of wetland change as determined by aerial ortho imagery.* // Download this layer [1] (Shapefile and ArcGIS 10.0 LYR) /Published 9/29/2014/ [2]The MassDEP Wetlands Change layer contains polygon features...
/May 2016/ *July 2020-DEP says the latest update should be available in September 2020* *The MassDEP Division of Watershed Management (DWM), Watershed Planning Program (WPP) 2014 Integrated List of Waters (305(b)/303(d)) data layer represents the...
/May 2013/ *This data layer represents the combined reporting elements for the 2012 cycle of both sections 305(b) and 303(d) of the Federal Clean Water Act (CWA).* Download this layer: * Shapefiles and DBF tables (9 MB) * ArcGIS 10...
/November 2011/ *The MassDEP Division of Watershed Management (DWM), Watershed Planning Program (WPP) 2010 Integrated List of Waters (305(b)/303(d)) data layer represents the combined reporting elements for the 2010 cycle of both sections 305(b) and...
/July 1999/ *The Networked Hydro Centerlines layers were developed for use with the **now-discontinued **Watershed Analyst extension that was used in ArcView 3.x. * Download the Centerlines layers ESRI shapefiles and SARIS lookup table (30 MB...
/June 2000/ *The Major Watersheds layer was originally based on the Major Basins layer and then modified to fit the needs of the MassGIS Watershed Analyst project.* Download this layer [1] MassGIS has produced a statewide digital datalayer of...
/July 2007/ Download this Image (MrSID format) Tile service at ArcGIS Online [1] *This layer is a digital raster graphic of the historical 15-minute USGS topographic quadrangle maps of coastal towns in Massachusetts. These quadrangles were...
/March 2007/ *This layer shows transmission lines in Massachusetts. It was digitized off of USGS topo maps and is not complete.* Request to download this layer [1] [2] The U.S. Geological Survey (USGS) distributes Digital Line Graphs...
/April 2015/ *Active Trains: passenger, freight, and MBTA Commuter Rail and Rapid Transit* Download this layer [1] ESRI Shapefile with ArcGIS LYRs View this datalayer in an online map [2] [3]The layer includes active passenger, freight,...
/July 2017/ *The Town Halls layer stores the location of primary municipal executive offices in Massachusetts, including town and city halls.* Download this layer [1] The Town Halls layer stores the location of primary municipal executive...
