Connecticut Historic Resources Inventory with Geolocations

A consolidated inventory of historic resources sourced from multiple official listings, including National Historic Landmarks, National Register, State Register, and local historic districts. The State of Connecticut compiled these points from various PDFs and surveys, with geolocation based on addresses and pre-existing maps. Some resources lack precise geolocation but remain in the attribute table.

Use Cases

• Map the distribution of historic sites based on geolocation data
• Analyze the overlap of designations (e.g., NHL, NRIND) for a single resource
• Identify historic resources lacking precise geolocation for field verification
• Study the concentration of historic resources by municipality or region

Strengths

• Aggregates data from over 10 distinct sources, including National Historic Landmarks and local inventories
• Includes geospatial coordinates for many resources, derived from addresses and maps
• Resources appearing in multiple source PDFs are consolidated into single entries

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download
• Column-level documentation is absent; field semantics must be inferred after download
• Some resources were unable to be geolocated, limiting spatial analysis

Provenance

Source

State of Connecticut

Collection Method

Compiled from official PDFs and surveys for National Historic Landmarks, National Register, State Register, and local historic inventories.

Time Range

null

Freshness

Last updated 2026-03-22 03:02:28.013747; freshness should be verified

Geography

Connecticut, United States