Grafton, United States
Lion's Den Gorge Nature Preserve
The Water Record
Official EPA advisory history for this beach, 2000–2026.
- Advisory-free seasons
- 13 seasons running
- Advisories since 2000
- 28
- Most recent advisory
- July 2013 · 1 days
Source: EPA BEACON, the federal Beach Advisory and Closing Online Notification system. We render the record; we don't write it.
Run this town? Put the official record on this page. Daily safety flags and water quality, published by your municipality.
Plan your visit
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Beaches nearby
Field notes — quick answers
Is Lion's Den Gorge Nature Preserve Blue Flag certified in 2026?
Not currently — Lion's Den Gorge Nature Preserve does not hold Blue Flag certification for the seasons we track. We list it as a Certification Candidate; certified beaches nearby are on the Grafton page.
Where is Lion's Den Gorge Nature Preserve?
Lion's Den Gorge Nature Preserve is in Grafton, in the Wisconsin region of United States. The interactive map shows it in context with every other beach we track nearby.