Maryland metal detecting rule layers
Quick answer: a rule applies because of jurisdiction and managing authority, not simply because a place is publicly accessible. This page contains only rule layers actually inherited by current Maryland records.
How to read these rules: detector use, digging, target recovery, artifact protection, permits and designated zones can be controlled by different provisions. A restrictive recovery rule is not automatically rewritten as a detector-possession ban, and an access permit is not automatically treated as recovery authorization.
Maryland metal detecting law questions
Is metal detecting legal on all public land in Maryland?
No. Public access does not create metal-detecting or target-recovery permission. The controlling rule depends on the land manager, property purpose, detector-use rule, digging/recovery restrictions, protected-resource law and any permit or designated-zone requirement.
Does a recreation, hunting or access permit authorize metal detecting?
Not unless the controlling rule expressly says it does. Access credentials and detector/recovery authorization are treated as separate legal questions in this database.
Can a map pin prove where metal detecting is permitted?
No. A map pin is only a public visitor/access reference point. It is never treated as a property boundary, detecting zone, archaeological location or legal permission boundary.
How many controlling rule layers are listed for Maryland?
14 current rule layers are represented on this page. Each rule entry identifies its managing authority, status, official source, verification grade and verification date.
Assateague State Park metal detecting — seasonal ocean-side rule
Assateague State Park permits metal detectors only beginning the day after Labor Day through May 30 and only on the ocean side of the primary dune.
Important exceptions: No detecting from May 31 until the day after Labor Day unless written Park Manager permission is obtained. Holes may be only as deep as a small child’s knees and must be filled. Protected artifacts/resources remain off limits.
Official source — dnr.maryland.gov · Supporting official source — dnr.maryland.gov · Verified
Baltimore City Parks — named metal-detecting exclusions
Baltimore City’s permit rules specifically exclude named parks/areas from detector use. This cohort captures named park identities in the major-park inventory that fall inside that exclusion list.
Important exceptions: The broader permit program does not override these exclusions. Current supervisor closures, historic-resource protections and seasonal rules can add further restrictions.
Official source — bcrp.baltimorecity.gov · Verified
Baltimore City Parks metal detector permit program
Baltimore City Recreation and Parks operates a metal-detector permit program. The permit is personal, generally issued on a one-year rolling basis, and requires training/orientation and compliance with recovery/restoration rules.
Important exceptions: City parks are closed to metal detecting in July and August under the published permit rules; supervisors retain discretion and specified parks/areas are excluded. Athletic areas and municipal golf courses are also excluded.
Official source — bcrp.baltimorecity.gov · Verified
Jefferson Patterson Park and Museum
Jefferson Patterson Park and Museum is treated separately from the Maryland Park Service recreation cohort because it is an archaeology/history-focused Maryland Historical Trust property.
Important exceptions: Do not infer detector permission from public visitation. Obtain explicit current property authorization before any detector or ground-disturbing activity.
Official source — jefpat.maryland.gov · Supporting official source — dnr.maryland.gov · Verified
Maryland national trail/program corridors — mixed ownership
A national trail/program designation does not make every Maryland parcel NPS-owned. Detector legality must be resolved against the exact underlying land manager and current site rule.
Important exceptions: NPS-owned park areas remain subject to 36 CFR §2.1. State/local/private segments may have different rules. No route corridor is treated as a permission polygon.
Official source — www.nps.gov · Supporting official source — www.ecfr.gov · Verified
Maryland Park Service designated swimming beaches — modern coin/jewelry exception
MPS allows metal detectors for modern coins, jewelry and similar recent items on eligible designated swimming beaches, but Park Manager permission is required and seasonal/hour restrictions apply.
Important exceptions: From May 30 through Labor Day, detector use is generally barred from 9:00 a.m. through dusk. Managers may impose additional restrictions. Artifact/relic hunting and protected-resource disturbance remain prohibited. Point Lookout and Calvert Cliffs are excluded.
Official source — dnr.maryland.gov · Supporting official source — dnr.maryland.gov · Verified
Maryland Park Service lands, beaches and waters — general detector rule
Maryland Park Service policy prohibits relic/treasure digging, prehistoric/historic artifact removal and metal-detector use without a Maryland Historical Trust Office of Archaeology permit. That archaeology permit is for qualified scientific investigation, not ordinary recreational detecting.
Important exceptions: The ordinary-user exception is limited to modern coins/jewelry on eligible designated MPS swimming beaches with Park Manager permission. Point Lookout State Park and Calvert Cliffs State Park are explicitly excluded from that exception.
Official source — dnr.maryland.gov · Supporting official source — dnr.maryland.gov · Verified
Maryland State Forest lands — COMAR 08.07.01.18
Maryland State Forest recreation guidance states that metal detectors and artifact removal are prohibited under COMAR 08.07.01.18.
Important exceptions: Archaeological/scientific exceptions require Maryland Historical Trust authorization and are not ordinary recreational permission. Forest-specific closures and access rules may be stricter.
Official source — dnr.maryland.gov · Supporting official source — dnr.maryland.gov · Verified
Maryland Wildlife & Heritage Service controlled lands — metal detector authorization
Maryland WMA rules require prior authorization before digging for relics/treasures, removing prehistoric/historic artifacts or using a metal detector. The governing framework requires Maryland Historical Trust Office of Archaeology authorization and a Service use permit.
Important exceptions: Hunting, fishing or public-access permission does not substitute for metal-detector/recovery authorization. Cooperative properties can have additional owner/manager restrictions.
Official source — dnr.maryland.gov · Supporting official source — dnr.maryland.gov · Verified
Montgomery Parks metal detectors and digging
Current Montgomery Parks rules prohibit using a metal detector or magnet and prohibit digging into park surfaces except as authorized by Permit or Park Directive.
Important exceptions: Archaeological excavation authorizations have professional requirements. A general reservation or ordinary park access is not detector permission.
Official source — montgomeryparks.org · Supporting official source — montgomeryparks.org · Verified
National Park Service park areas — 36 CFR §2.1
36 CFR §2.1 prohibits possessing or using metal detectors and related detecting devices in National Park Service park areas. The same section also prohibits digging, disturbing, removing or damaging protected natural, cultural and archaeological resources. current data uses this federal rule only for public visitor/reference points inside identified Florida NPS units; no search-target coordinates are exposed.
Important exceptions: The detector prohibition does not apply when a device is broken down and packed to prevent use, to navigation/safe-operation equipment for boats or aircraft, or to detectors used for authorized scientific, mining or administrative activities. These are not ordinary recreational detecting permissions. Park-specific closures and superintendent rules may be stricter.
Official source — www.ecfr.gov · Verified
Sandy Point State Park beach metal detecting
Sandy Point publishes a park-specific detector schedule for its beach/swimming areas: limited early-morning access in the Memorial Day–Labor Day season and broader park-hour access in the off-season.
Important exceptions: Current beach boundaries, closures, special events, resource protection and Park Manager instructions control. Artifact/relic hunting remains outside the modern-item exception.
Official source — dnr.maryland.gov · Supporting official source — dnr.maryland.gov · Verified
U.S. Army Corps of Engineers recreation lands — 36 CFR §327.14
36 CFR §327.14 permits metal detectors on designated beaches or other previously disturbed lands where specifically authorized and not otherwise prohibited. The exact open area is project-specific and must not be inferred from a shoreline, beach name or public map pin.
Important exceptions: District/project managers may prohibit use. Archaeological, historic and other protected resources may not be disturbed or removed. Where a project publishes an exact detector policy, that project-specific policy controls.
Official source — www.ecfr.gov · Supporting official source — www.sam.usace.army.mil · Verified
U.S. Fish & Wildlife Service National Wildlife Refuge System — 50 CFR Part 27 search/resource restrictions
Federal Refuge System rules provide an A-grade negative decision for antiquity, buried-treasure/treasure-trove, specified mineral-object and prospecting searches and for unauthorized property disturbance/removal. They do not expressly answer every ordinary modern lost-item detector-use scenario. current decision therefore publishes the resolved restrictions while preserving the unresolved narrower detector-use dimension.
Important exceptions: Refuge-specific rules, closures, special-use permits and compatibility determinations may be stricter, including explicit detector prohibitions. Authorized activities may exist under applicable federal regulations. No permission is inferred from public access, beaches, waterways or absence of a refuge-specific detector sentence.
Official source — www.ecfr.gov · Supporting official source — www.fws.gov · Verified