2003. MassGIS (Office : Mass.). The MassGIS 1:25,000 Hydrography datalayer represents hydrographic (water-related) features, including surface water (lakes, ponds, reservoirs), we... Office of Geographic and Environmental Information (MassGIS).
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2003. MassGIS (Office : Mass.). This datalayer contains a polygon feature representing an ocean mask for the coast of Massachusetts and surrounding New England coastline. It was ... Office of Geographic and Environmental Information (MassGIS).
2003. MassGIS (Office : Mass.). This datalayer contains polygons representing Massachusetts Priority Natural Vegetation Communities : Coastal Natural Community Systems.
These sys... Office of Geographic and Environmental Information (MassGIS).
2000. MassGIS (Office : Mass.). The Designated Shellfish Growing Area (DSGA) datalayer was compiled by the Department of Fisheries, Wildlife and Environmental Law Enforcement's (D... Office of Geographic and Environmental Information (MassGIS).
1999. MassGIS (Office : Mass.). This datalayer shows statistics for lobsters harvested (by pounds) from 25 distinct statistical reporting areas covering a large portion of the Gul... Office of Geographic and Environmental Information (MassGIS).
