Metal detecting in Maryland is heavily regulated by land type. You can’t use a metal detector on Maryland Park Service land without a permit from the Maryland Historical Trust, except at a designated swimming beach, where you need permission from the Service instead – not from the park manager, which is what most guides say. COMAR 08.07.06.18. A separate regulation, 34.04.08.25, covers State museums. Federal land falls under the Archaeological Resources Protection Act, which makes removing an archaeological resource an offence. Private land is your best bet, and items there generally belong to the landowner, so get written permission. Permits are reserved for archaeologists with a scientific plan, which is the regulation’s own test rather than a rule of thumb. The rules go deeper than most detectorists expect.
Maryland allows detecting on designated swimming beaches only, with two parks excluded and a seasonal time restriction. The regulation is quoted on metal detecting rules in Maryland.
Key Takeaways
- Metal detecting in Maryland state parks is prohibited without a permit, Metal detecting on Maryland Park Service land needs a permit from the Office of Archeology, Maryland Historical Trust, under COMAR 08.07.06.18(B). The exception is a designated swimming beach, for modern coins and jewellery, with Point Lookout and Calvert Cliffs excluded – and there the permission comes from the Service, D(2), not from the park manager.
- A separate regulation governs State museums: COMAR 34.04.08.25 requires a permit from the Trust and express permission from the museum director.
- Beach detecting is closed 9 a.m. through dusk from May 30 through Labor Day, D(3)(a) – and D(3)(b) adds “other times at the discretion of the park manager”, so the calendar and the clock do not settle it.
- Private land detecting is legal with written landowner permission; no additional permits are required.
- Items found on private land belong to the landowner. On federal land, ARPA does not settle ownership at all: 16 U.S.C. 470ee prohibits excavating, removing, damaging or defacing an archaeological resource without a permit, and 470cc governs the permits. Who owns a lawfully recovered object follows from the managing agency’s own regulations or the terms of that permit.
- Permits for detecting are primarily issued to professional archaeologists, making hobbyist access to protected sites very limited.
Maryland’s Metal Detecting Laws, Explained
Maryland’s metal detecting laws hinge on who controls the land you’re detecting on—state, federal, private, or local. Each jurisdiction sets its own rules, and ignoring those distinctions can cost you legally.
On Maryland state park land, you’re prohibited from using a metal detector without a permit unless you’re on a designated swimming beach during allowed hours.
Federal land carries even stricter restrictions under the Archaeological Resources Protection Act.
Private land gives you the most freedom, but you’ll need written landowner permission.
Cultural site protection runs through Maryland’s framework, and archaeologically sensitive areas are restricted whatever the land type.
Reporting an old find is worth doing and is a request, not a requirement. The Maryland Historical Trust’s own words: “If you find something that appears to be more than 50 years old, like evidence of an old historic site or other historic activity, please report it to MHT. Your report helps us document significant places in the Maryland Inventory of Historic Properties (Archaeology).”
Please, and helps us. No provision of COMAR 08.07.06.18, COMAR 34.04.08.25, or Md. Code State Fin. & Proc. 5A-340 or 5A-342 obliges a finder to report anything, so reporting is voluntary – useful to archaeology, and not a legal duty.
Know the rules before you dig.
Where Can You Legally Detect in Maryland?
Knowing the rules is only half the equation—knowing where they actually let you detect is the other half. Maryland’s landscape offers real options, but each site carries distinct legal boundaries you can’t ignore.
Knowing the rules is only half the battle—knowing where you can legally detect is the other.
Your clearest legal opportunities include:
- Designated swimming beaches operated by the Maryland Park Service, for modern coins and jewellery, with permission from the Service – not every state park has one, and Point Lookout and Calvert Cliffs are excluded outright
- Private land where you’ve secured written private land permissions from the owner
- Local parks in counties or towns explicitly permitting detecting
- Your own property, free from permit requirements
- Non-restricted public beaches outside state park jurisdiction, subject to local ordinances
Historical artifacts complicate every location, though not in the way this page used to say. On private land, finding something over 50 years old does not create any reporting obligation. MHT asks to hear about old finds and says so politely; it is the landowner, not the Trust, who has a claim on what comes out of their ground. MHT’s own page: “if you want to detect on private land, always get the landowner’s permission, as items found in or on the ground generally belong to them.”
Know your site, secure your permissions, and verify local ordinances before you dig.
Beach Metal Detecting: The Seasonal Blackout and Manager Permission Rules
Beach metal detecting at Maryland state parks operates under a narrow legal window that requires you to clear two distinct hurdles before you swing a coil. The first is permission, and it is worth getting the body right because guides disagree. COMAR 08.07.06.18 D(2): “An individual shall obtain permission to use a metal detector as set forth in this regulation from the Service” – the Maryland Park Service. The park manager appears in this regulation once, at D(3)(b), and for a different job. What you do not need at a swimming beach is the Trust’s archaeology permit, and conflating the two is why the beach exception reads as harder than it is.
The second is temporal. Seasonal restrictions impose a complete blackout from 9:00 a.m. through dusk, May 30 through Labor Day. That window protects beach safety during peak visitor hours, effectively limiting your legal access to early mornings outside that window.
Even outside summer, the Park Manager retains authority to restrict your access if detecting would interfere with recreation. Know these rules cold before you go, because ignorance won’t shield you from enforcement.
Who Owns Your Finds Under Maryland Law?
Ownership of your finds in Maryland depends almost entirely on where you’re detecting. Artifact ownership shifts based on jurisdiction, and cultural heritage laws limit your rights considerably on public land.
Where you detect in Maryland determines who owns what you find—jurisdiction changes everything.
Key rules governing what you can keep:
- Private land: Items belong to the landowner; get written permission first.
- State park land: You can’t legally remove artifacts without a permit.
- State museums: COMAR 34.04.08.25 bars digging for relics, removing artifacts and using a detector within a State museum’s boundaries without a Trust permit and express permission from the museum director, which (B) allows only for archaeologists and other qualified persons presenting a plan for scientific investigations.
- Federal land: ARPA makes removing an archaeological resource an offence, 16 U.S.C. 470ee(a). On ownership it is narrower than often stated: 470cc(b)(3) makes it a condition of granting a permit that resources excavated or removed from public lands will remain the property of the United States. Without a permit the question is the offence, not title.
On private land, a landowner agreement can grant you rights. Everywhere else, assume the managing agency controls the find.
Reporting an apparently old find to the Maryland Historical Trust is worth doing, and ARPA imposes no duty on a finder to report, though 25 U.S.C. 3002(d) does for a Native American cultural item on Federal or tribal land. MHT invites reports to build the Maryland Inventory of Historic Properties; it does not impose a duty.
Can You Actually Get a Metal Detecting Permit in Maryland?
Understanding who owns your finds leads to an obvious follow-up question: can you get a permit that lets you detect legally in the first place? Technically, yes—but practically, it’s difficult.
Maryland issues these permits to archaeologists and qualified researchers, and for State museums that is the regulation’s own test rather than a practice. COMAR 34.04.08.25(B): the museum director may grant permission “only to archaeologists and other qualified persons or institutions experienced in scientific research, who present a plan for scientific investigations”. MHT puts the same point more plainly for state-owned land generally, saying the archaeology permit is “usually reserved only for professional archaeologists”. If you’re a hobbyist, you won’t qualify – and the swimming beach exception exists precisely so that you do not need to.
On state park land, historical site restrictions mean permits exist to protect archaeological context, not to expand recreational access.
Private land permissions operate differently—no Maryland Historical Trust permit is required, and written landowner consent is all you need.
For federal land, the Archaeological Resources Protection Act creates additional barriers that effectively shut out casual detectorists.
Bottom line: unless you’re a credentialed archaeologist, your legal options are narrow and precisely defined.
Frequently Asked Questions
What Should I Do if I Find Something That Looks Old?
Consider reporting it; ARPA imposes no finder duty, though 3002(d) does for a Native American cultural item on Federal or tribal land. The Maryland Historical Trust asks: “If you find something that appears to be more than 50 years old, like evidence of an old historic site or other historic activity, please report it to MHT. Your report helps us document significant places in the Maryland Inventory of Historic Properties (Archaeology).”
What does bind you is the other side of it. On Park Service land you needed a permit before you dug at all, outside the swimming beach exception, and the beach exception covers modern coins and jewellery rather than historic artifacts. So if something genuinely old comes out of a Maryland state park beach, the problem is not an unfiled report – it is that the exception you were relying on does not cover it. Stop, and ring the park.
Does Maryland Require Written Landowner Permission for Private Property Detecting?
Like Locke’s vision of property rights, you’re free to detect on private property, but you need the landowner’s permission first. Maryland doesn’t mandate written consent, yet getting it in writing protects you legally.
Are Federal Lands Within Maryland Subject to Different Artifact Removal Rules?
Yes, on federal land within Maryland you are under the federal Archaeological Resources Protection Act, which prohibits excavating, removing or damaging an archaeological resource without a permit, 16 U.S.C. 470ee(a). Two limits are worth knowing because most guides omit both: it reaches only federal and Indian lands, 16 U.S.C. 470bb(3) and (4), and it covers only objects at least 100 years old and of archaeological interest, 470bb(1). It does not reach private land, and on Maryland Park Service land the operative rule is the state’s own, COMAR 08.07.06.18.
References
- https://dnr.maryland.gov/publiclands/pages/metaldetecting.aspx
- https://metaldetectingforum.com/index.php?threads/metal-detecting-in-maryland.279251/
- https://www.silverrecyclers.com/blog/metal-detecting-in-maryland.aspx
- https://www.law.cornell.edu/regulations/maryland/COMAR-08-07-06-18
- https://mht.maryland.gov/identify-document/report-artifact-discovery/metal-detecting-maryland
- https://getluckyfind.com/guides/metal-detecting-laws/maryland/
- https://regs.maryland.gov/us/md/exec/comar/34.04.08.25
- https://allowedhere.com/legality/metal-detecting-public-land/maryland/
- https://codelibrary.amlegal.com/codes/carrollcounty/latest/carrollcounty_md/0-0-0-19603
