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50-state metal detecting intelligence

Metal Detecting in New Hampshire

Official-source rules, permission pathways, map context and practical next steps—kept separate from the rockhounding atlas.

50-State Metal Detecting Map

New Hampshire Metal Detecting Map

Filter, inspect and navigate the current New Hampshire records with real map layers and permission-aware location details. Written rules always control permission.

14,825verified records
50states
298verified pins
14,825navigable
Map ≠ detecting permission. A marker or temporary search match is navigation context only. Written manager rules, posted restrictions, permits, protected-resource law, ownership and exact designated zones always control.
United States
State bubbles, verified pins and clusters are clickable · drag, zoom or change map layers
● Allowed / conditional● Permit● Prohibited● Restricted● ReviewBasemaps: OpenStreetMap / USGS · overlays: BLM
Verified pins are independently grounded public reference points. Query-only records appear on the map only after an explicit visitor request and remain temporary.

New Hampshire metal detecting status at a glance

New Hampshire does not have one universal public-land answer. The controlling result depends on the exact managing agency, legal scope, recovery method and any designated-zone requirement.

118Total researched locations
118Actionable decision pages
100%Actionable coverage
0Research holds

New Hampshire coverage complete: every record in the researched state inventory has a public actionable decision. This does not mean every site is allowed and it does not turn confirmation-required or zone-confirmation pages into trip-ready places.

66Restricted — metal detectors are not permitted on DNCR property unless a beach-shoreline exception, special-use permit, or authorized-personnel pathway applies
20Prohibited — current Ncr 731.19(c) bars metal detectors at state historic sites, natural areas, and Odiorne Point State Park
8Search/recovery restricted — refuge public access is not metal-detecting or treasure-search permission
7Conditional allowed zone — metal detecting is permitted only along the shoreline of beaches unless otherwise posted
7Local ordinance/manager confirmation required
6Zone confirmation required — detector use may be permitted only in areas allowed under 36 CFR §327.14 and current project restrictions
1Prohibited — federal NPS regulation bars possessing or using a metal detector except narrow authorized purposes
1Parcel/manager confirmation required — the Appalachian Trail crosses multiple ownership and management regimes
1Special-use authorization required for metal-detection field investigations that could discover, yield, or alter historic resources

New Hampshire metal detecting: quick answers

Is metal detecting legal in New Hampshire?

There is no single statewide yes/no answer for every public place. This database currently contains 117 verified New Hampshire records, and each result depends on the managing agency, exact legal scope, recovery method, protected-resource rules and any permit or designated-zone requirement.

Do you need a permit to metal detect in New Hampshire?

0 current New Hampshire records have a permit/authorization signal. Other records may be prohibited, confirmation-gated, zone-restricted or governed by a different rule, so public access alone is never treated as permission.

Does every record have map access?

Yes. Independently verified coordinates appear as pins; records without verified coordinates use safe on-demand address/name navigation, and sensitive records use a broader agency/locality reference. None of these map modes represents a permission boundary.

How current is the New Hampshire metal detecting database?

The newest verification date represented in the current New Hampshire verified inventory is 2026-08-30. Every location page also shows its own verification date, evidence grade and official source.

New Hampshire structured dataset

Use the state-filtered JSON inventory for machine-readable legal status, managing authority, permit/recovery fields, verification evidence and safe map-reference metadata.

Open New Hampshire JSON dataset

Explore New Hampshire by agency, system and local area

New Hampshire Metal Detecting Laws

Use the map explorer above to browse the complete state inventory without loading every location page into one response.