Permanent claim record · Isle Royale National Park

Isle Royale is a wilderness island in Lake Superior roughly 45 miles long and 9 miles wide — about 50 miles from Michigan's shore and just 12 from Canada.

Verified

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{"tags":["isle-royale","national-parks"],"text":"Isle Royale is a wilderness island in Lake Superior roughly 45 miles long and 9 miles wide — about 50 miles from Michigan's shore and just 12 from Canada.","category":"numbers"}

Predicate	trivia.fact
Subject	Isle Royale National Park (venue)
As of
Status	Verified
Source	Famous Michiganders, Pop Culture & Trivia Report — Perplexity Deep Research (2026) (trust 6.5/10)
Reference	—
Document hash	pending evidence-pack link
Provenance chain
Claim ID	97e36190-af3f-43d6-9df9-5d21835036bd