Clarification
Algonac State Park
Added a public caution: Map boundary review is due. The existing practical answer is unchanged.
Public history
Public updates
Dated changes to answers, restrictions, and official-source details. Routine checks are not listed here.
Clarification
Flint State Park
Added a public caution: Confirm the permit terms before visiting. The existing practical answer is unchanged.
Clarification
Grand Haven State Park
Aligned the underlying area descriptions with the approved park-wide answer, retaining campground and statewide exclusions.
Clarification
Huron-Clinton Metroparks
Added a public caution: Confirm what the detecting permit allows you to recover. The existing practical answer is unchanged.
Clarification
Porcupine Mountains Wilderness State Park
Added a public caution: Map boundary review is due. The existing practical answer is unchanged.
Clarification
Michigan State Parks and Recreation Areas
Clarified that campground conditions vary by property and linked the individual property guidance.
Clarification
Lake Metroparks
Added a public caution: Confirm the reporting threshold for finds. The existing practical answer is unchanged.
Correction
Ohio State Parks and Watercraft Lands
Corrected the campground wording to distinguish exclusion from the automatically permitted category from a categorical prohibition.
Restriction updated
Algonac State Park
Added the property-level condition that only registered campers may metal detect in campground areas.
Restriction updated
Porcupine Mountains Wilderness State Park
Added the property-level condition that only registered campers may metal detect in campground areas while retaining the current map as the open-area boundary.
Correction
Michigan State Parks and Recreation Areas
Clarified that no separate authorization is stated for DNR-designated open areas and that written authorization is required outside those areas.
Correction
Metroparks Toledo
Removed the misleading designated-area wording and aligned the answer with the direct Metroparks Toledo prohibition.
Correction
Ohio State Parks and Watercraft Lands
Reordered official-source presentation so the administrative rule that directly establishes the answer is shown first.
Correction
Ohio State Parks and Watercraft Lands
Clarified that eligible sand-beach and qualifying mowed areas do not require written permission, while other areas require written area-manager permission.
Conclusion updated
Grand Haven State Park
The answer now reflects the current park-wide scope and registered-campers-only campground condition shown by the official sources.
Correction
Huron-Clinton Metroparks
Clarified that the free detector permit authorizes detector operation but does not necessarily authorize recovery or removal under the separate collection rule.
Conclusion updated
Summit Metro Parks
The former unclear answer was corrected after the current official FAQ directly prohibited metal detectors.
Initial publication
Algonac State Park
Initial official-source summary published.
Initial publication
Flint State Park
Initial official-source summary published.
Initial publication
Grand Haven State Park
Initial official-source summary published.
Initial publication
Huron-Clinton Metroparks
Initial official-source summary published.
Initial publication
Porcupine Mountains Wilderness State Park
Initial official-source summary published.
Initial publication
Michigan State Parks and Recreation Areas
Initial official-source summary published.
Initial publication
Cleveland Metroparks
Initial official-source summary published.
Initial publication
Edgewater Beach
Initial official-source summary published.
Initial publication
Lake Metroparks
Initial official-source summary published.
Initial publication
Metroparks Toledo
Initial official-source summary published.
Initial publication
Ohio State Parks and Watercraft Lands
Initial official-source summary published.
Initial publication
Summit Metro Parks
Initial official-source summary published.