Historic asset inventory areas in Massachusetts

Name: Historic asset inventory areas in Massachusetts
Creator: MassGIS Bureau of Geographic Information
License: https://www.mass.gov/info-details/about-massgis

Explore 7,168 source records for Historic asset inventory areas in Massachusetts. View the map or download the GeoJSON snapshot.

MassGIS (Bureau of Geographic Information), Commonwealth of Massachusetts EOTSS Prepared by Draw on a Map on 2026-10-09. All source fields retained. See the dataset notes for geometry repairs and reduced detail.

Inspect and select records

Choose values to filter the preview. Open or download the matching records.

Loading records from the map preview…

Open selected records

View record table

The table shows up to eight fields. The download keeps all fields and the original geometry.

About this dataset

Snapshot prepared on 2026-10-09. This is not a live service. The source update date can be earlier.
All 7,168 records in the reviewed snapshot are retained, with all source fields and record IDs. This layer is not a complete inventory of all places in the region.
Source coordinates use WGS84. Altitude and measure values are omitted.
12 invalid source geometries were repaired with Shapely linework make_valid. Polygon holes and collapsed lines or points are retained. Repair can change filled areas where source rings cross or overlap.
Geometry was simplified locally with a 0.0005 degree tolerance and topology preservation. Records that could not be simplified to valid geometry retain their repaired geometry.
This map is for overview use. Do not use it for precise boundary measurement.
Original source metadata and reuse evidence: https://drawonamap.com/library/sources/government-2026-10/historic-asset-inventory-areas-in-massachusetts-47e47f3d.json
Credit MassGIS (Bureau of Geographic Information), Commonwealth of Massachusetts EOTSS.

Source and licence

MassGIS Bureau of Geographic Information

Licence: MassGIS public-use terms

GeoJSON download details

The download includes all 7,168 features as area groups, areas. Coordinates use longitude and latitude in WGS84.

The preparation date is when we prepared this dataset. Read the source notes for the dates covered by the data.

GeoJSON fields 18

OBJECTID: OBJECTID. Source field from MassGIS Bureau of Geographic Information.
MHCN: MHC Unique ID. Source field from MassGIS Bureau of Geographic Information.
TYPE: Resource Type. Source field from MassGIS Bureau of Geographic Information.
DESIGNATIO: Legal Historic Designation. Source field from MassGIS Bureau of Geographic Information.
D_DATE: Designation Date. Source field from MassGIS Bureau of Geographic Information.
LEGEND: Legend Category. Source field from MassGIS Bureau of Geographic Information.
HISTORIC_N: Historic Name. Source field from MassGIS Bureau of Geographic Information.
COMMON_NAM: Common Name. Source field from MassGIS Bureau of Geographic Information.
ADDRESS: Address. Source field from MassGIS Bureau of Geographic Information.
TOWN_NAME: City/Town. Source field from MassGIS Bureau of Geographic Information.
CONSTRUCTI: Construction Date. Source field from MassGIS Bureau of Geographic Information.
ARCH: Architectural Style. Source field from MassGIS Bureau of Geographic Information.
MAKER: Architect/Designer. Source field from MassGIS Bureau of Geographic Information.
USE_TYPE: Use Type. Source field from MassGIS Bureau of Geographic Information.
SIGNIFICAN: Significance. Source field from MassGIS Bureau of Geographic Information.
GlobalID: GlobalID. Source field from MassGIS Bureau of Geographic Information.
Shape__Area: Shape__Area. Source field from MassGIS Bureau of Geographic Information.
Shape__Length: Shape__Length. Source field from MassGIS Bureau of Geographic Information.