Permanent claim record · Sleeping Bear Dunes National Lakeshore

Unlike Atlantic or Pacific dunes formed by ocean erosion, Sleeping Bear's perched dunes were created by glacial processes and sit atop glacial moraines — formations unique to the Great Lakes.

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{"tags":["sleeping-bear","geology","glacial"],"text":"Unlike Atlantic or Pacific dunes formed by ocean erosion, Sleeping Bear's perched dunes were created by glacial processes and sit atop glacial moraines — formations unique to the Great Lakes.","category":"nature"}

Predicate	trivia.fact
Subject	Sleeping Bear Dunes National Lakeshore (venue)
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	595445ec-b47f-44dc-8d13-b98981be15cd