Permanent claim record · Mackinac Island, Michigan

The Grand Hotel claims the world's longest front porch at 660 feet, lined with rocking chairs overlooking Lake Huron; jacket and tie are required after 6pm for guests inside the hotel.

Verified

Raw value (vault-stripped)

{"tags":["grand-hotel","hotels"],"text":"The Grand Hotel claims the world's longest front porch at 660 feet, lined with rocking chairs overlooking Lake Huron; jacket and tie are required after 6pm for guests inside the hotel.","category":"record"}

Predicate	trivia.fact
Subject	Mackinac Island, Michigan (place)
As of
Status	Verified
Source	West Michigan Tourism: Attractions, Landmarks & Regional Highlights — Perplexity Deep Research (March 2026) (trust 6.5/10)
Reference	—
Document hash	pending evidence-pack link
Provenance chain
Claim ID	a49ed78d-a46d-4d63-8b8e-6e85fd036c5b