In MACRIS the points are symbolized to indicate the most common historic designation types: 1) National Register of Historic Places, 2) local historic district, 3) both National Register and local historic district, 4) Preservation Restriction, and 5) inventoried but not designated with one of the previous designations. Less common designations are not symbolized in MACRIS, but are included in the Designations attribute field. MassGIS stores a copy of the point feature class as MHCINV_PT. MassGIS projected the data to the NAD1983 Mass. State Plane Meters Mainland coordinate system.

Provided to MassGIS on June 29, 2022.

Information from the MACRIS database and related records on file at the MHC, including the Inventory of Historic Assets of the Commonwealth, National Register of Historic Places nomination forms, local historic district study reports, local landmark reports, and other materials.