Quick Answer: Arkansas permits metal detecting at nine named state park beaches — Crowleys Ridge, Daisy, DeGray Lake Resort, Lake Catherine, Lake Charles, Lake Dardanelle, Lake Ouachita, Village Creek, and Woolly Hollow — but only from the day after Labor Day through the weekend before Memorial Day, 8 a.m. to 5 p.m., with a registration form on hand and holes capped at 6 inches. Every other state park is closed to detecting under Park Directive 3040, with one exception that turns out not to matter: Crater of Diamonds State Park, where a metal detector is both banned and useless.
Verified September 25, 2026: Cross-checked Arkansas’s Park Directive 3225 beach list, season, hours, registration, and tool-size rules against the Federation of Metal Detector & Archeological Clubs’ state page and MDHTALK’s Arkansas regulation summary, with the Crater of Diamonds equipment restriction confirmed directly against the park’s own search-area rule (013.05.09 Ark. Code R. 003) via Cornell Law School’s regulation mirror, and the Corps of Engineers lake-permit requirement confirmed against the Corps’ own Arkansas metal-detector permit application.
Arkansas is the 31st entry in this state-by-state series — Michigan, Ohio, North Carolina, Texas, Florida, Arizona, Colorado, Georgia, New York, Virginia, South Carolina, Tennessee, Kentucky, Oklahoma, Missouri, Indiana, Wisconsin, Alabama, Illinois, Washington, Oregon, Utah, Minnesota, New Jersey, Maine, Massachusetts, Maryland, New Hampshire, Vermont, and Connecticut came before it. Every one of those states drew its detecting line somewhere on public land. Arkansas is the first where the one place the rule opens up widest — a park built entirely around letting visitors dig and keep what they find — is also the one place a metal detector cannot do its job at all.
Nine beaches, one season, a six-inch hole cap
Under Park Directive 3225, Arkansas State Parks allows metal detecting at exactly nine designated public swim beaches: Crowleys Ridge, Daisy, DeGray Lake Resort, Lake Catherine, Lake Charles, Lake Dardanelle, Lake Ouachita, Village Creek, and Woolly Hollow. The window is narrow — the day after Labor Day through the weekend preceding Memorial Day, Sunday through Saturday, 8:00 a.m. to 5:00 p.m. — which excludes the entire summer swimming season, when those same beaches are busiest. Detectorists must complete a registration form and keep it on their person while detecting, and follow the state’s lost-and-found procedure: a 30-day hold to locate the original owner on anything of value, excluding circulating coins.
Digging tools are tightly capped: screwdrivers, ice picks, and probes no wider than 2 inches, or sand scoops no larger than 6 by 8 inches with half-inch perforations. Every hole is limited to 6 inches deep, must be refilled immediately, and the surface restored to its original condition. Historically or archaeologically significant finds can’t be removed — park staff has to be notified on the spot, consistent with the federal Archaeological Resources Protection Act that applies to public land across every state in this series.
| Location | Detecting allowed? | Governing rule |
|---|---|---|
| 9 named state park beaches, Labor Day+1 to before Memorial Day | Yes, with registration | Park Directive 3225 |
| All other state park & museum property | No | Park Directive 3040 |
| Crater of Diamonds search field | Dig by hand, but no detectors | Directive 3040 exception + 013.05.09 Ark. Code R. 003 |
| Corps of Engineers lakes (Ouachita, DeGray, Dardanelle, etc.) | Only with a District Engineer permit | 36 CFR 327.14 |
| Buffalo National River (NPS-managed lower 135 miles) | No | 36 CFR 2.1(a)(7) |
| Private land | Yes | Landowner permission only |
The catch: the one exception that doesn’t actually help
Directive 3040 bans detecting on state park and museum property statewide, full stop — with one named carve-out: Crater of Diamonds State Park, a 37-acre plowed field sitting on the eroded surface of a volcanic crater, where visitors can dig by hand and keep whatever they find, no permit or license required. Over 35,000 diamonds have turned up there since 1906, including the 40.23-carat Uncle Sam Diamond, the largest ever found in the United States.
That sounds like the most detector-friendly rule in the whole state — until you try to bring one. The park’s own equipment rule (013.05.09 Ark. Code R. 003) bans motor- and battery-operated search equipment on the search field outright, and requires everything else to be hand-carried through the Visitor Center. Even if that rule didn’t exist, it wouldn’t matter: diamonds and the other gemstones found at the crater aren’t metallic, so the electromagnetic technology behind every detector this site reviews has nothing to key on. Arkansas’s one true detecting exception is, functionally, a park where a metal detector serves no purpose either way.
Garrett AT Max
- Full 10 ft (3 m) whole-machine submersion suits wading the shorelines of Lake Ouachita, DeGray Lake, and Lake Dardanelle — the same Corps-managed reservoirs that host four of Arkansas's nine permitted state park beaches, once a District Engineer permit is in hand for the Corps land itself.
- The 13.6 kHz VLF engine and Automated Ground Balance Window handle the mineralized clay soil common around Arkansas's Ouachita and Ozark foothills without constant re-tuning.
- See our full Garrett AT Max review for how it compares to the cheaper AT Pro and the newer multi-frequency Vortex VX9.
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Getting started
Plan your Arkansas trip around the calendar first: the nine state park beaches only open to detecting after Labor Day and close again before Memorial Day, so a summer visit means private land or a Corps-permitted lake is your only legal option. Bring a registration form, keep your digging tool under the 2-inch/6x8-inch size caps, and refill every hole to under 6 inches immediately. Skip the idea of bringing a detector to Crater of Diamonds — go there to dig by hand instead — and get a District Engineer permit before detecting anywhere on Corps of Engineers land, including the shorelines of Lake Ouachita, DeGray, and Dardanelle. Buffalo National River is a hard no statewide. Check our beginner buying guide before your first outing.
The bottom line
Arkansas keeps its legal detecting ground narrow and dated — nine beaches, six months of the year, 6-inch holes — but what makes this state stand out in the series isn’t the restriction, it’s the exception. Crater of Diamonds State Park is the one place Arkansas explicitly opens up digging and keeping what you find, and it’s also the one place a metal detector is banned by rule and useless by physics. Corps of Engineers lake shorelines add a second permit layer on top of the state park rules for the same water, and Buffalo National River stays closed under the same federal ban this series has already confirmed elsewhere. See the complete field in our overall pillar rankings or the metal detecting legality guide for how other states compare.
Sources: Arkansas State Regulation (Federation of Metal Detector & Archeological Clubs), Arkansas Metal Detecting Law & Regulations (MDHTALK), 013.05.09 Ark. Code R. 003 — Rules for the Search Area for Crater of Diamonds State Park (Cornell Law School), Metal Detector Permit — Arkansas Lakes (U.S. Army Corps of Engineers).