/January 2006/ *This dataset represents bathymetry of the Quabbin Reservoir at 10-foot intervals.* Download this layer - ESRI Shapefiles (arc and polygon) - ArcMap layer file (.lyr) and ArcView 3.x legend files (.avl) [1] This dataset...
/July 1997/ Download this layer (66 MB) (Shapefiles with ArcGIS 10.0 layer files and FEMA-produced metadata) *IMPORTANT NOTE: IT IS NOT APPROPRIATE TO USE THIS DATALAYER FOR LARGE-SCALE (DETAILED, E.G. PARCEL LEVEL) MAPPING AND ANALYSIS. PLEASE...
/February 2005/ *These data delineate areas potentially served by larger public water suppliers, as of January 2004.* Download this layer: ESRI Shapefile (includes ArcView 3.x legend (.avl) and ArcGIS 9.0 layer file (.lyr) [1] These data...
*These layers depict eelgrass beds. Seagrass beds are critical wetlands components of shallow marine ecosystems along the Massachusetts coastline.* .... Overview Seagrass beds are critical wetlands components of shallow marine ecosystems along...
/January 2019/ *The Prisons point datalayer shows the location of all correctional facilities (state, county and federal) in the Commonwealth of Massachusetts that house inmates.* Download this layer [1] View in an online map [2] [3] Physical...
/January 2013/ *These layers were created using primarily the NRCS/MassGIS Soils data; the basic procedure was to classify potentially forested land into nine different categories based on potential average timber productivity.* Download this layer...
/December 2015/ *The Police Stations layer shows the point locations of law enforcement and sheriff offices in Massachusetts, covering local, county and state jurisdictions.* Download this layer Includes ESRI Shapefile, with ArcGIS 10 LYR To use...
/March 1991/ *These polygon and line datalayers are available that represent the outline (boundary) of the Commonwealth of Massachusetts*. OUTLINE (100k coast): Shapefile [1] OUTLINE (25k coast): Shapefile [2] These polygon and line datalayers...
/March 2010/ * This datalayer delineates areas in which certain waters are afforded Outstanding Resource Water (ORW) protection under the Massachusetts Surface Water Quality Standards, 314 CMR 4.00 (WQS). According to 314 CMR 4.04(3).* Download this...
/December 2006 / *Digital Orthophoto Index tiling grid for several datalayers, including: 1990's black and white , 2001/2003 color and 2005 color orthophotos .* Download these layers (shapefiles): OQMAIN [1] | OQISLE [2] The Digital Orthophoto Index...
