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1. MassGIS 2000 Areas of Critical Environmental Concern (July 2000)

Polygon Harvard University Public content
2000. MassGIS (Office : Mass.). The Areas of Critical Environmental Concern (ACEC) datalayer shows the location of areas that have been designated ACECs by the Secretary of Enviro... Office of Geographic and Environmental Information (MassGIS).

3. MassGIS 2000 Massachusetts Senate Legislative Districts (1993)

Polygon Harvard University Public content
1997. MassGIS (Office : Mass.). The Massachusetts State Senate Legislative Districts (1993) datalayer reflects the State Senate district boundaries as defined by Chapter 274 of th... Office of Geographic and Environmental Information (MassGIS).

4. MassGIS 2000 Massachusetts Town Boundaries (March 1991)

Polygon Harvard University Public content
1991. MassGIS (Office : Mass.). The political boundary datalayer is a 1:25,000 scale datalayer containing the boundaries of the 351 communities in Massachusetts. The seaward bound... Office of Geographic and Environmental Information (MassGIS).

8. MassGIS 2003 Massachusetts Drainage Sub-basins (Polygons) (March 2003)

Polygon Harvard University Public content
2003. MassGIS (Office : Mass.). This datalayers contains polygons representing Massachusetts drainage sub-basins (see also the Drainage Sub-basins (Arc) datalayer). MassGIS has p... Office of Geographic and Environmental Information (MassGIS).
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).