Quick Answer: Metal detecting is legal across most of the United States, but the rules change completely depending on who owns the ground. It’s banned outright in national parks and monuments under federal regulation 36 CFR 2.1(a)(7), generally allowed in national forest recreation areas, permit-by-park in state parks (rules set individually, not statewide), usually fine in city and county parks away from historic sites, and always fine on your own land or private land you have explicit permission to search. There’s no single national law — the safest move before any new hunt is a two-minute check with whoever manages that specific patch of ground.

Last updated August 28, 2026: Re-verified against the current eCFR text — 36 CFR 2.1(a)(7)‘s blanket ban on possessing or using a metal detector in any National Park Service unit remains unchanged, with the same narrow exceptions for authorized scientific/administrative use and boat/aircraft navigation electronics. Added our new state-specific guide for Florida below.

New detectorists ask this question before they ever swing a coil, and for good reason: get it wrong on federal land and you’re not looking at a warning, you’re looking at a federal offense. Get it right and the hobby is wide open — most of the country’s parks, beaches, and yards are fair game. This guide breaks the legal picture down by who actually owns the land, because that’s the only variable that matters.

The one rule that actually decides it: who owns the land

There’s no single federal “metal detecting law.” Instead, four separate landowners set four separate rulebooks, and none of them defer to the others:

Land typeDetecting allowed?Governing rule
National parks & monumentsNo — banned outright36 CFR 2.1(a)(7)
National forestsUsually, in recreation areasARPA + local forest service rules
State parksPermit-by-park, varies widelyIndividual state park regulations
City / county parksUsually, outside historic zonesLocal municipal code
Beaches (public, below high tide)Usually, most permissive groundLocal/municipal, some exceptions
Private propertyYes, with owner's permissionNone — owner's call entirely

National parks: banned outright, and it’s a real federal regulation

This is the one absolute in an otherwise patchwork picture. 36 CFR 2.1(a)(7) — a real, citable federal regulation — prohibits possessing or using “a mineral or metal detector, magnetometer, side scan sonar, other metal detecting device, or subbottom profiler” anywhere inside a National Park Service unit. That covers every national park, national monument, and NPS-managed historic site in the country, not just the famous ones. The regulation carves out exactly three narrow exceptions: a detector broken down and packed away so it can’t be used, electronics used purely for boat or aircraft navigation, and detectors used under an authorized scientific, mining, or administrative permit. Recreational detecting doesn’t fit any of the three. This is why you’ll see detectorists insist “never in a national park” without qualification — the regulation genuinely doesn’t leave room for a judgment call.

Stack the Archaeological Resources Protection Act (ARPA) of 1979 on top of that, and the stakes get higher on any federal land, not just parks: digging up an artifact more than 100 years old without a permit is a criminal act under ARPA, and enforcement treats it that way — confiscated gear and prosecution, not a polite citation.

National forests: usually fine in recreation areas, off-limits at archaeological sites

National forests are managed by the US Forest Service, a different federal agency with a different mandate — recreation and multiple use, rather than the NPS’s strict preservation mission. That difference shows up directly in the rules: recreational detecting is generally permitted in designated recreation sites and picnic areas, and mineral prospecting is allowed in approved zones (often with its own permit for actual prospecting, separate from casual coin-and-relic hunting). What’s still off the table everywhere in a national forest is any known archaeological or historical site — the same ARPA and National Historic Preservation Act protections that apply on NPS land apply here too. If you turn up something that looks archaeological, the same rule applies as anywhere on federal land: stop digging and report it to the local ranger district rather than removing it.

State parks: permit-by-park, and there’s no single answer

This is the messiest tier, and it’s the one most detectorists get wrong by assuming a state-level rule exists. It doesn’t. Individual state parks — sometimes individual units within the same state system — set their own conditions, and a permit from one park almost never covers another. The conditions that show up most consistently across states:

Practically: call or check the specific park’s website before you go, every time, even if you’ve detected there before under an older permit. For a worked example of exactly how one state’s rules break down — designated-area-only detecting rather than a park-wide permit — see our metal detecting in Michigan guide. Ohio takes the opposite approach with one clear-cut rule instead: sand beaches and mowed areas open by default, everything else permission-only — see our metal detecting in Ohio guide for how that plays out. North Carolina flips the usual pattern: its state parks are nearly closed to detecting, while municipally managed public beaches carry no such restriction — see our metal detecting in North Carolina guide for that state-park-versus-beach distinction. Texas layers on a rule none of those three have: even on legally open ground, the Texas Antiquities Code makes anything over 50 years old found on public land a state archaeological landmark you can’t keep — see our metal detecting in Texas guide for how that changes the calculus. Florida raises the stakes further still — removing anything roughly 50 years or older from state land is a third-degree felony under Chapter 267, not just a confiscation risk — see our metal detecting in Florida guide for the toe-of-dune park rule and Treasure Coast salvage-lease no-go zones. Arizona flips the pattern one more time: its state parks ban detecting with zero exceptions, but BLM land and six national forests treat it as routine casual use requiring no permit at all — see our metal detecting in Arizona guide for why the state’s best gold ground sits almost entirely on federal rather than state land. Colorado adds a wrinkle none of those states have: state parks allow searching but ban digging or removal outright, and its most famous gold district is checkerboarded with still-active mining claims you have to check before you dig — see our metal detecting in Colorado guide for how to tell claimed ground from open public land. Georgia goes further than any state in this series: O.C.G.A. § 12-3-10(n) bans even possessing a metal detector in a state park, historic site, or recreational area — not just digging in one — see our metal detecting in Georgia guide for where that leaves the Dahlonega gold belt and specific beaches like Tybee Island. New York breaks the pattern in a different way than any state so far: it isn’t one agency’s rule but two, run independently of each other — a paid $40/year state permit for mapped Long Island beach zones, and a separate free city permit for open fields in the five boroughs — see our metal detecting in New York guide for how the two systems split. Virginia’s entire state park system narrows down to just six man-made lake beaches, each needing its own individual DCR permit — see our metal detecting in Virginia guide for why the Virginia Antiquities Act turns digging a battlefield into a criminal charge, not just a confiscation. South Carolina splits the license and the activity apart in a way none of the others do: its Underwater Antiquities Act does issue a hobby license for collecting artifacts from rivers and coastal waters, but that license explicitly excludes metal detecting and mechanized equipment — see our metal detecting in South Carolina guide for why a state permit process can exist and still not cover the hobby it sounds like it should. Tennessee’s state parks have no general recreational permit path at all — only a supervised lost-item exception — and a huge share of the state’s lake shoreline sits under a separate TVA ban on top of that. See our metal detecting in Tennessee guide for why rivers and non-TVA lakes end up being the most reliable public ground in the state. Kentucky goes a step further than Tennessee and is the most restrictive state in this series so far: its state parks carve out no recreational exception at all, not even a supervised lost-item search — only park staff, law enforcement, and utility crews may run a detector — and a separate federal ban closes Land Between the Lakes’ Kentucky Lake and Ohio River shoreline on top of that. See our metal detecting in Kentucky guide for why Louisville bans detecting citywide while Bowling Green allows it in daylight.

City parks, county parks, and beaches: the most permissive ground

Local parks and public beaches are where most detectorists actually spend their time, and for good reason — they’re the most consistently permissive category, and it’s where our own beginner’s guide tells new hobbyists to start. City and county parks typically allow detecting in open lawn and picnic areas but ban it in memorial sections, playgrounds, and anywhere flagged as historic. Public beaches below the high-tide line are usually the single most permissive ground in the entire legal landscape — it’s also why our beach and waterproof detector guide exists as its own category. The exception worth knowing: a beach that sits inside a national seashore or a restricted state park inherits that stricter parkland’s rules, so a quick check of posted signage still matters.

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Private property: always the owner’s call, no exceptions

There’s no ambiguity here at all: detecting on private property — a friend’s field, a farm, a vacant lot — always requires the owner’s permission, regardless of what state or local law says about public land. No regulation overrides a landowner’s right to say no. The community norm that keeps this door open for everyone is simple and well established: ask first, fill every hole, split any significant find with the owner if that’s the deal you struck, and you’ll almost always be invited back.

What happens if you break the rules

The consequences scale with where the violation happens. On National Park Service land, possessing a detector at all violates 36 CFR 2.1(a)(7) — expect confiscation of the device and a citation at minimum. Add an actual dig on any federal land and you’re in ARPA territory, and the numbers are specific: a first-offense felony under ARPA carries up to a $20,000 fine and/or two years in prison, and a second offense raises that to up to $100,000 and five years, per the National Park Service’s own ARPA guidance. On state and local land, penalties are typically far lighter — a warning or a citation for detecting without a permit or in a restricted zone — but repeated violations can get a detectorist banned from an entire park system. The pattern holds everywhere: the deeper you dig without checking first, the worse the consequences get.

The verdict: check the specific ground, every time

Metal detecting itself isn’t the legal question — where you’re standing is. National parks are a hard no under 36 CFR 2.1(a)(7). National forests are generally open outside archaeological sites. State parks need a permit check park-by-park. City parks and beaches are the most forgiving ground, and your own yard or land you have permission for is always fine. None of those rules require you to memorize a statute book — they require one habit: check before you swing, every time you’re on ground you don’t own.

Ready to buy a detector for legal ground like parks, yards, and beaches? Start with our best beginner metal detectors, or see the full cross-brand field in our overall pillar guide. Panning for gold by hand follows a different rulebook — recreational panning with hand tools generally qualifies as BLM “casual use” without a permit, covered in our gold panning kit guide. Meteorite collecting on BLM land has its own separate casual-use limit — 10 pounds per person, per year — detailed in our meteorite detector guide. Magnet fishing runs under a different rulebook again — legal in most states, but South Carolina bans it statewide outright — covered in our magnet fishing kit guide.