Permanent claim record · Port Huron, Michigan
Michigan's oldest surviving lighthouse is the Fort Gratiot Lighthouse, built in 1829 on Lake Huron at Port Huron.
| Predicate | trivia.fact |
|---|---|
| Subject | Port Huron, Michigan (place) |
| As of | |
| Status | Verified |
| Source | Michigan Pop Culture, Game Shows & Trivia Content Mine — Perplexity Deep Research (March 2026) (trust 6.5/10) |
| Reference | — |
| Document hash | pending evidence-pack link |
| Provenance chain | |
| Claim ID | 1ae1aa42-9d56-4f3f-a0b8-5b93a0239a6b |