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

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).

2. MassGIS 2003 Massachusetts areas of critical environmental concern (July 2000)

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 2003 Massachusetts DEP BWP major facilities (August 2000)

2000. MassGIS (Office : Mass.). The Massachusetts Department of Environmental Protection (DEP) major facilities datalayer is a statewide point dataset containing the location of a... Office of Geographic and Environmental Information (MassGIS).

4. MassGIS 2003 Massachusetts Designated Shellfish Growing Areas (Arcs) (October 2000)

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).

5. MassGIS 2003 Massachusetts Designated Shellfish Growing Areas (Polygons) (October 2000)

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).

6. MassGIS 2003 Massachusetts Hydrography (1:100,000) (Arcs) (August 2000)

2000. MassGIS (Office : Mass.). This datalayer contains arcs representing Massachusetts rivers and streams. MassGIS has adapted and modified the U.S. Geological Survey 1:100,000 ... Office of Geographic and Environmental Information (MassGIS).

7. MassGIS 2003 Massachusetts Hydrography (1:100,000) (Polygons) (August 2000)

2000. MassGIS (Office : Mass.). This datalayer contains polygons representing Massachusetts ponds, lakes, reservoirs, and rivers. MassGIS has adapted and modified the U.S. Geolog... Office of Geographic and Environmental Information (MassGIS).

8. MassGIS 2003 Massachusetts Major Watersheds (Arcs) (June 2000)

2000. MassGIS (Office : Mass.). This datalayer contains lines representing Massachusetts watershed boundaries (see also the Watersheds (Polygons) datalayer). MassGIS has produc... Office of Geographic and Environmental Information (MassGIS).

9. MassGIS 2003 Massachusetts Major Watersheds (Polygons) (June 2000)

2000. MassGIS (Office : Mass.). This datalayer contains polygons representing Massachusetts watersheds (see also the Watersheds (Arcs) datalayer). MassGIS has produced a statew... Office of Geographic and Environmental Information (MassGIS).

10. MassGIS 2003 Massachusetts NHESP Potential Vernal Pools (December 2000)

2000. MassGIS (Office : Mass.). This datalayer identifies the locations of more than 29,000 potential, unverified, vernal pool habitats. Vernal pools are small, shallow ponds char... Office of Geographic and Environmental Information (MassGIS).