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Layer: DBT_Clusters (2)


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Data Last Edit Date: 3/6/2025 11:50:14 PM

Layer: DBT_Land (3)


Name: DBT_Land

Display Field: desc_

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Layer: DBT_Observations (4)


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Layer: MA_Towns (5)


Name: MA_Towns

Display Field: TOWN

Type: Feature Layer

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Description: The political boundary datalayer is a polygon representation of city and town boundaries created from arcs developed from survey coordinates extracted from the 68-volume Harbor and Lands Commission Town Boundary Atlas for the 351 communities (cities and towns) in Massachusetts. The Atlas was published in the early 1900's and is maintained by the Survey Section of Massachusetts Highway Department. For communities with a coastal boundary, MassGIS has collaborated with Massachusetts Water Resources Authority and the Department of Environmental Protection to complete a 1:12000 scale coastline. The boundary for the coastline was defined as being the upland side of tidal flats and rocky inter-tidal zones. Note that the 351 communities are the official municipal names, not including "villages" or other sections of towns. This layer contains multi-part polygons, in which islands or sections of municipalities separated by water have all been merged to create one feature per city or town. This layer is the same as TOWNSSURVEY_POLYM but with a generalized coastline for faster map display.

Copyright Text: MassGIS, MassDOT - Highway Division, MassDEP, MWRA

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Layer: StudyArea (6)


Name: StudyArea

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Description: The political boundary datalayer is a polygon representation of city and town boundaries created from arcs developed from survey coordinates extracted from the 68-volume Harbor and Lands Commission Town Boundary Atlas for the 351 communities (cities and towns) in Massachusetts. The Atlas was published in the early 1900's and is maintained by the Survey Section of Massachusetts Highway Department. For communities with a coastal boundary, MassGIS has collaborated with Massachusetts Water Resources Authority and the Department of Environmental Protection to complete a 1:12000 scale coastline. The boundary for the coastline was defined as being the upland side of tidal flats and rocky inter-tidal zones. Note that the 351 communities are the official municipal names, not including "villages" or other sections of towns. This layer contains multi-part polygons, in which islands or sections of municipalities separated by water have all been merged to create one feature per city or town.

Copyright Text: MassGIS, MassDOT - Highway Division, MassDEP, MWRA

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Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 3/6/2025 11:50:20 PM

Schema Last Edit Date: 3/6/2025 11:50:20 PM

Data Last Edit Date: 3/6/2025 11:50:20 PM