Minnesota effectively closes its state parks to recreational detecting: the rule only allows searching for a specifically lost item, with written permission and supervision. The realistic option is certain county parks with a permit. Here’s the detail.
Can I detect in Minnesota?
The short answer for each kind of land. Tap a card for the detail and the rule’s own words.
- State parksLost items onlyonly to locate specifically identified lost personal propertyChecked against the source Oct 8, 2026
- State & public landNo verdict yetSource check pending
- Public land & lakesVaries by siteinside state parks: the state-park rule applies (lost items only)Checked against the source Oct 8, 2026
- Local & federalVaries by siteother counties and cities: ask the parks departmentChecked against the source Oct 8, 2026
- Federal landNo verdict yetSource check pending
Open in many areas without a permitPermit, registration, or designated beaches onlyProhibited or effectively closed
The rules, land by land
State parks
Lost items onlyIn Minnesota state parks a detector may be used only to find a specific lost personal item, with the park manager's prior written permission and under the manager's supervision.
- only to locate specifically identified lost personal property
- prior written permission from the park manager
- used under the park manager's supervision
- exception: scientific research under a commissioner's special permit plus a field archaeology license from the state archaeologist
What the rule says
“the use of metal detectors in state parks is permitted only for locating specifically identified items of lost personal property. Metal detectors may be used only with prior written permission from the park manager and under the supervision of the park manager.”
State & public land
No verdict yetNo cited source sets a detector rule for Minnesota state land outside state parks. The Field Archaeology Act licenses field archaeology on state sites (see the dig and keep rules).
Digging
Research permits onlyField archaeology on any Minnesota state site, including surveying, digging, removing objects or going on a site with that intent, needs a license; only the state archaeologist and licensed individuals may do it.
- 'state site': land or water owned or leased by, or subject to the paramount right of, the state, a county, township or municipality, where there are objects or evidence of archaeological interest (138.31 subd. 14)
- 'historical remains' exclude bottles and ceramics manufactured after 1875
- licenses go to qualified persons approved by the state archaeologist; the managing agency must also approve (138.36 subd. 2)
What the rule says
“No person, including state or other public employees other than the state archaeologist and individuals duly licensed by the director of the Minnesota Historical Society shall engage in any field archaeology on any state site.”
Keeping finds
ProhibitedThe state holds title to every object found in field archaeology in Minnesota, even when a license names another custodian.
- objects found and data gathered in field archaeology
- exceptions: agreements with out-of-state institutions, and barter or disposal by the state archaeologist (subds. 2 and 3)
What the rule says
“The state reserves to itself the title to all objects found and data gathered in field archaeology, except as provided in subdivisions 2 and 3.”
Public land & lakes
Varies by siteLake shores follow their manager: inside state parks the state-park rule applies (lost items only), while Dakota and Washington county parks allow detecting only on designated swimming-beach sand with a permit; other shores were not read.
- Dakota County: free annual permit; sand of designated swimming beaches only; holes no deeper than 6 inches
- Washington County: seasonal permit, Memorial Day weekend to Labor Day, swim beach only at four county parks, 6 a.m. to 8 p.m.; digging no deeper than 6 inches
- other counties, cities and lake shores (including Lake Superior outside parks): no cited source; ask the manager
- inside state parks: the state-park rule applies (lost items only)
What the rule says
“The hours for detection activity are 6:00 a.m. to 8:00 p.m., and is limited to the swim beach area only.”
Local & federal
Varies by siteDakota and Washington county parks allow detecting only on designated swimming beaches with a permit. Other county and city rules were not confirmed.
- Dakota County: free annual permit; sand of designated swimming beaches only; holes no deeper than 6 inches
- Washington County: seasonal permit, Memorial Day weekend to Labor Day, swim beach only at four county parks, 6 a.m. to 8 p.m.; digging no deeper than 6 inches
- other counties and cities: ask the parks department
What the rule says
“Dakota County Parks allows metal detecting only at designated swimming beaches. A permit is required.”
Federal land
No verdict yetA general federal-land detector rule was not confirmed in this review; ask the specific land manager.
Even where detecting is allowed, archaeological and historic sites are protected, and you must fill every hole and follow posted rules. Always confirm the current rule with the land manager.
Metal detecting in Minnesota state parks
Minnesota Rule 6100.0900 subpart 2(F) allows detector use only to locate a specifically identified lost personal item, and only with prior written permission from and supervision by the park manager (plus scientific research under a commissioner permit and field-archaeology license). There’s no recreational treasure-hunting allowance.
Minnesota’s antiquities law
The Minnesota Field Archaeology Act (Minn. Stat. §§138.31–138.42) bars field archaeology on any state site except by the state archaeologist and people licensed by the director of the Minnesota Historical Society (§138.33), and the state keeps title to what is found (§138.37). Separately, §307.08 makes disturbing human burial grounds or removing human remains without the appropriate authority’s consent a felony.
Public land, lakes & local rules
Minnesota has no ocean coast; Lake Superior and inland lakes provide the shoreline, and within state parks Rule 6100.0900 governs. Some county parks are more permissive but narrow — Dakota County, for example, allows detecting only in the sand of two designated swimming beaches (Schulze Lake and Lake Byllesby) with a free annual permit under Ordinance 107, with digging limited to 6 inches and holes refilled. Always confirm locally. See our national guide.
Sources
Official and statutory sources this page is based on (source check: October 8, 2026):
- Minn. Rule 6100.0900 (state park rules)
- Minn. Stat. §138.31 (Field Archaeology Act, definitions)
- Dakota County — metal detecting permit (now at https://dakotacountymn.gov/parks/activities/passes-permits)
- Dakota County Parks: Metal Detecting Permit
- Minn. Stat. §138.33 (unlicensed field archaeology prohibited)
- Minn. Stat. §138.36 (licenses)
- Minn. Stat. §138.37 (ownership, custody and use of objects and data)
- Washington County (MN) Parks — Metal Detector Permit Application
- Minn. Stat. §307.08, Damages; illegal molestation of human remains; burials; cemeteries
Once you’ve confirmed where you’re allowed to hunt, LuckyFind helps you make the most of it — track your route on the map, log each find with its location, and revisit your saved hunt records. LuckyFind does not verify land access or grant detecting permission. Free for iPhone and Android.
New to LuckyFind? Follow the first-hunt checklist, then learn how to record a hunt and add finds.
Frequently Asked Questions
- Can you metal detect for fun in a Minnesota state park?
- No. Under Minn. Rule 6100.0900 subpart 2(F), detecting is limited to locating a specifically identified lost personal item, only with prior written permission and supervision by the park manager. There’s no allowance for recreational hunting.
- What if you lost your ring in a Minnesota state park?
- You may search, but only with advance written permission from the park manager, who must supervise, since the rule allows detecting only for a specifically identified lost item. Contact the park office first.
- Are Minnesota county or city parks more permissive?
- Sometimes, but rules vary and many restrict it. Dakota County, for example, allows detecting only in the sand of two designated swimming beaches with a free annual permit under Ordinance 107. Always confirm with the local jurisdiction.
Find more, remember where
Download LuckyFind — free for iPhone and Android — to track your routes, log your finds, and keep your permitted spots organized.
