MassGIS Data: Municipalities in Adjacent States

January 1998

These datalayers represent the municipal boundaries of the five states that border Massachusetts, plus those of Maine.

Overview

These datalayers represent the municipal boundaries of the five states that border Massachusetts, plus those of Maine. The following list describes the original source and scale of the data and how MassGIS obtained them:

• Connecticut: USGS 1:24,000 Topographic Quad maps, obtained from CT Dept. of Environmental Protection Natural Resources Center.
• Maine: USGS 1:62,500 Quad series, obtained from ME Dept. of Conservation in 1990. See the Maine Office of GIS for current resources.
• New Hampshire: 1:250,000 statewide manuscript, obtained from NH Granit (NH state GIS program) in 1990.
• New York: NY State Office of Real Property Services, obtained from NH Granit office.
• Rhode Island: USGS 1:24,000 Topographic Quad maps, obtained from RIGIS (Rhode Island GIS) in 1989.
• Vermont: USGS 1:250,000 maps, obtained from Vermont Office of GIS

All six states' data were projected to the Massachusetts State Plane Mainland coordinate system, NAD83 datum, units meters, for use with all other MassGIS data. Please note that the layers vary in quality and are distributed for use only in regional mapping.

Attributes

Each layer has a polygon attribute table and/or an arc attribute table. The items for each are as follows:

Connecticut

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CTTOWNS_ARC: FEATURE - 1 = State Boundary, 2 = Coastline, 3 = Ocean closure line, 10 = Boundary between towns in or out of the Connecticut River Basin, 11 = Town Boundaries (within CT River Basin), 12 = Town Boundaries (not within CT River Basin) CTTOWNS_POLY: TNA - Town name FEATURE - Towns in the Connecticut River Basin  = 1, outside of basin = 0 ACRES - Area of town in acres

Maine

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METOWNS_ARC: OUTLINE - 0 = Internal town boundaries, 1 = State outline METOWNS_POLY: COUNTY_ID - Maine County ID TOWN_ID - Maine Town ID TOWN - Town name ALT_ID - Alternate TOWN ID CODE - LURC -

New Hampshire

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NHTOWNS_ARC: OUTLINE - 0 = Internal town boundaries, 1 = State outline NHTOWNS_POLY: FIPS - Federal Information Processing Standard Census code NAME - Town name

New York

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NYTOWNS_ARC: SYM - 41 = County and state boundaries, 65 = Internal town boundaries OUTLINE - 0 = Internal town boundaries, 1 = State outline NYTOWNS_POLY: LABEL - Town name SWIS - Unique New York State municipality identification code

Rhode Island

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RITOWNS_ARC: OUTLINE - 0 = Internal town boundaries, 1 = State outline COAST - 0 = Inland boundaries, 1 = Coastline RITOWNS_POLY: NAME - Town name OSP_CODE - Unique town identifier TFIPS_CODE - Town FIPS (US Census) code CFIPS_CODE - County FIPS (US Census) code COUNTY - County name LAND - Land feature (1 = land, 0 = water)

Vermont

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VTTOWNS_ARC: TBLINE - 1 = State outline, 2 = County boundaries, 3 = Internal town boundaries (non-county) VTTOWNS_POLY: VTTOWN_ - Unique town identifier FIPS - US Census FIPS Code TOWNNAME - Town name RPC - Regional Planning Commission Abbreviation

Maintenance

As stated above, MassGIS distributes these layers for use in regional mapping and does not maintain or update them. For web links to each state's GIS program, please see the Contacts page.

Last updated:	January 1, 1998