Can I Detect Here? · Field reference

Algonac State Park

Allowed with restrictions. Metal detecting is limited to the red-shaded areas on DNR’s currently linked Algonac map. Only registered campers may metal detect in campground areas. All other areas are closed unless the unit supervisor or manager gives written authorization.

Exact geographic scope
Metal detecting within the DNR-designated portions of Algonac State Park; only registered campers may detect in campground areas.
Permit or permission
The mapped red-shaded areas are open under the current property guidance. Written authorization is required elsewhere.
Campground condition
Only registered campers may metal detect in campgrounds.
Main restrictions
  • All other mapped areas, unless the unit supervisor or manager provides written authorization.
  • Designated historic and archaeological sites.
Digging and recovery
DNR guidance allows probes or small hand trowels if the land is not unduly disturbed, and all disturbed material must be replaced. Large-scale digging is prohibited except as part of a DNR-authorized and properly permitted archaeological project. DNR guidance expressly allows probes or small hand trowels for subsurface recovery if the land is not unduly disturbed; replace disturbed material.
Find reporting or removal
All recovered items must be checked by a unit employee. Artifacts must be left in their original position; relics, aboriginal antiquities, and abandoned property of historical or recreational value are retained by the state. Staff will return recovered items recorded as lost when ownership can be established and the rightful owner contacted.
Public caution
The map was visually checked on September 22, 2026 and remains linked by DNR. Its red areas support the stated detecting scope. DNR warns that amenities, trails and other map details may be inaccurate. Use the red detecting boundary on the official map and confirm current signs and campground conditions with park staff.
Material sources
Material sources checked September 22, 2026.
AI source audit
Source-supported with limitations · Completed September 22, 2026 · 4 material sources reviewed. Evidence strength: high. This describes source support, not guaranteed permission.
Next source audit
March 21, 2027
Primary official source
Land-manager phone
810-765-5605
Live record
Print date
Write the print date here: __________________

Recheck live signs and official sources before detecting. This independent summary does not grant permission. Closures, permit terms and conditions can change.

Metal-detecting answer

Algonac State Park

Allowed with restrictions

Metal detecting is limited to the red-shaded areas on DNR’s currently linked Algonac map. Only registered campers may metal detect in campground areas. All other areas are closed unless the unit supervisor or manager gives written authorization.

Answer
Allowed with restrictions
Permission
The mapped red-shaded areas are open under the current property guidance. Written authorization is required elsewhere.
Where it applies
Metal detecting within the DNR-designated portions of Algonac State Park; only registered campers may detect in campground areas.
Campground
Only registered campers may metal detect in campgrounds.
Main restrictions
  • Designated areas only
  • Tool-type limits
  • Ground-restoration requirements
  • Protected-resource exclusions
  • Archaeological-resource exclusions
  • Found-property rules
Sources checked
Material sources checked September 22, 2026.
Source freshness
Recently source-checked
How this answer was checked
Audit method
AI source audit
Audit date
Audit result
Source-supported with limitations
Material sources
4
Evidence strength
High — Michigan DNR places Algonac State Park in the designated-area category and links a park map whose red shading identifies open zones. The map says all other areas are closed; Order 5.26 allows use outside a current access-map area only with written authorization from the unit supervisor or manager.
Next audit

Where you can detect

Where detecting is allowed

  • Only the red-shaded designated areas shown on page 1 of the current DNR-linked Algonac metal-detecting map.

Where it is restricted or prohibited

  • All other mapped areas, unless the unit supervisor or manager provides written authorization.
  • Designated historic and archaeological sites.

Digging and recovery

  • DNR guidance expressly allows probes or small hand trowels for subsurface recovery if the land is not unduly disturbed; replace disturbed material.
  • DNR guidance allows probes or small hand trowels if the land is not unduly disturbed, and all disturbed material must be replaced. Large-scale digging is prohibited except as part of a DNR-authorized and properly permitted archaeological project.

Keeping or reporting finds

All recovered items must be checked by a unit employee. Artifacts must be left in their original position; relics, aboriginal antiquities, and abandoned property of historical or recreational value are retained by the state. Staff will return recovered items recorded as lost when ownership can be established and the rightful owner contacted.

Important restrictions

  • Only registered campers may metal detect in campgrounds.

Before you go

Before you go

Use the current DNR-linked map, detect in campground areas only if you are a registered camper, and contact Algonac State Park at 810-765-5605 if a boundary or authorization question is unclear.

Check posted signs before you go. Rules, closures, maps, and permit procedures can change.

Official sources

Official sources

These links show the rules and dates used for this page.

Algonac State Park metal-detecting map on the official Michigan Department of Natural Resources website

Source authority: Michigan Department of Natural Resources

Source role: Decisive

What this source supports: The official map, visibly dated 3/2004 and still linked by DNR in 2026, marks the designated open areas in red and states: all other areas closed.

Evidence locator: PDF page 1: red designated-open shading, closed-area note, legend, contact block and lower-right 3/2004 date

Last modified
Date checked:

Metal detecting on the official Michigan Department of Natural Resources website

Source authority: Michigan Department of Natural Resources

Source role: Controlling

What this source supports: The DNR page states the park classifications, limits detecting to specifically designated open areas, excludes designated historic and archaeological sites, gives small-tool and ground-restoration rules, and requires staff review of recovered items.

Evidence locator: Metal detecting regulations; Parks open to metal detecting; By permit only; Parks with designated areas open to metal detecting

Date checked:

Algonac State Park on the official Michigan Department of Natural Resources website

Source authority: Michigan Department of Natural Resources

Source role: Property scope

What this source supports: The current Algonac State Park property source establishes that metal detecting is allowed only in designated park areas, states that only registered campers may detect in campgrounds, and lists the current park contact information.

Evidence locator: Amenities & activities; Stay overnight · Amenities & activities > Metal detecting; Contact; Stay overnight

Editorial paraphrase: The current property page establishes that metal detecting is allowed only in designated park areas, states that only registered campers may detect in campgrounds, and lists current park contact information at 810-765-5605.

Date checked:

Land Use Order of the Director Amendment No. 6 of 2023 on the official Michigan Department of Natural Resources website

Source authority: Michigan Department of Natural Resources

Source role: Restriction

What this source supports: Order 5.26(1) prohibits detector use outside an area shown open on the current access map unless the unit supervisor or manager provides written authorization; the order calls for access maps to be published by April 15 each year.

Evidence locator: PDF page 4, Order 5.26(1)

Published
Last modified
Date checked:

Related records

Michigan · State parkPermit required

Flint State Park

A permit is required before metal detecting at Flint State Park; confirm the current process before visiting.

Caution: Complete public detector-permit terms are not available.

Permission
Authorization is required before detector use throughout the stated scope.
Source checks
Source checks through September 22, 2026
AI source audit
Source-supported with limitations
Read the full answer
Michigan · State parkAllowed with restrictions

Grand Haven State Park

The Michigan DNR says the entire park is open to metal detecting, subject to statewide rules. Only registered campers may detect in campground areas.

Only registered campers may metal detect in campgrounds.

Permission
No separate authorization is stated for the listed scope.
Source checks
Source checks through September 22, 2026
Read the full answer