Connecticut Historic Resources: Aggregated Points from National and State Registers

Opportunity Zones is a geospatial dataset of historic and cultural resources in Connecticut, aggregated from multiple sources including the National Historic Landmarks, National Register, and various state and local inventories. The State of Connecticut compiled these points, with the dataset last updated on March 22, 2026. Geolocation is based on addresses and maps from source documents, though some points lack precise coordinates.

Use Cases

• Map the density of historic designations based on the aggregated source lists.
• Analyze spatial overlap between different heritage programs (e.g., National Register vs. local districts) based on the described source designations.
• Identify resources with potential geolocation inaccuracies based on the description of address-based mapping.
• Cross-reference historic sites for development or conservation projects based on the multi-source aggregation.

Strengths

• Aggregates data from over ten distinct authoritative sources, including national, state, and local registers.
• Includes resources even when precise geolocation was not possible, as noted in the description.
• Last update timestamp is precisely recorded: 2026-03-22 03:01:19.937697.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Geolocation is described as being based on addresses and pre-existing maps, which may introduce positional inaccuracies.

Provenance

Source

State of Connecticut, sourced from National Historic Landmarks, National Register, State Register, and other local inventories.

Collection Method

Points were sourced from associated PDFs and geolocated based on addresses and pre-existing maps.

Time Range

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Freshness

Last updated 2026-03-22 03:01:19.937697; freshness should be verified.

Geography

Connecticut, United States