No independently verified coordinate pins match the current filters. Use Show on map on any visible result to resolve its safe address/name query onto this map, or use its Google/OSM/Apple links.
Blackwater National Wildlife RefugeMarylandNamed public place map search Eastern Neck National Wildlife RefugeMarylandNamed public place map search Martin National Wildlife RefugeMarylandNamed public place map search Patuxent Research RefugeMarylandNamed public place map search Susquehanna National Wildlife RefugeMarylandNamed public place map search Allowed/restrictedPermit requiredProhibitedRestricted / partialReview
Map meaning: verified coordinate pins identify independently grounded public visitor/access reference points. Query-only records can be resolved on demand as temporary provider search matches; sensitive records use a deliberately broader agency/locality query. Temporary search matches are not stored as verified coordinates. No map mode is a property boundary, detecting zone, archaeological target, or permission boundary.
Search/recovery restricted; modern lost-item detector use requires refuge-specific verification
Grade A · 100/100
U.S. Fish and Wildlife Service
National Wildlife Refuge System rules restrict antiquity, treasure/resource searching and unauthorized property/resource disturbance; modern lost-item detector use still requires refuge-specific verification.
DecisionSearch RestrictedTrip readyNoPlanResolve Search Purpose And Site Rule Before TravelEvidenceCurrentScopeControlling Rule Scope StoredPrecisionPurpose-specific search/resource restriction — not a blanket detector-use ban
Permit: Refuge-specific special-use authorization may be required; no permission inferred from public access
Verified: 2026-08-29
Search/recovery restricted; modern lost-item detector use requires refuge-specific verification
Grade A · 100/100
U.S. Fish and Wildlife Service
National Wildlife Refuge System rules restrict antiquity, treasure/resource searching and unauthorized property/resource disturbance; modern lost-item detector use still requires refuge-specific verification.
DecisionSearch RestrictedTrip readyNoPlanResolve Search Purpose And Site Rule Before TravelEvidenceCurrentScopeControlling Rule Scope StoredPrecisionPurpose-specific search/resource restriction — not a blanket detector-use ban
Permit: Refuge-specific special-use authorization may be required; no permission inferred from public access
Verified: 2026-08-29
Search/recovery restricted; modern lost-item detector use requires refuge-specific verification
Grade A · 100/100
U.S. Fish and Wildlife Service
National Wildlife Refuge System rules restrict antiquity, treasure/resource searching and unauthorized property/resource disturbance; modern lost-item detector use still requires refuge-specific verification.
DecisionSearch RestrictedTrip readyNoPlanResolve Search Purpose And Site Rule Before TravelEvidenceCurrentScopeControlling Rule Scope StoredPrecisionPurpose-specific search/resource restriction — not a blanket detector-use ban
Permit: Refuge-specific special-use authorization may be required; no permission inferred from public access
Verified: 2026-08-29
Search/recovery restricted; modern lost-item detector use requires refuge-specific verification
Grade A · 100/100
U.S. Fish and Wildlife Service
National Wildlife Refuge System rules restrict antiquity, treasure/resource searching and unauthorized property/resource disturbance; modern lost-item detector use still requires refuge-specific verification.
DecisionSearch RestrictedTrip readyNoPlanResolve Search Purpose And Site Rule Before TravelEvidenceCurrentScopeControlling Rule Scope StoredPrecisionPurpose-specific search/resource restriction — not a blanket detector-use ban
Permit: Refuge-specific special-use authorization may be required; no permission inferred from public access
Verified: 2026-08-29
Search/recovery restricted; modern lost-item detector use requires refuge-specific verification
Grade A · 100/100
U.S. Fish and Wildlife Service
National Wildlife Refuge System rules restrict antiquity, treasure/resource searching and unauthorized property/resource disturbance; modern lost-item detector use still requires refuge-specific verification.
DecisionSearch RestrictedTrip readyNoPlanOperationally BlockedEvidenceCurrentScopeControlling Rule Scope StoredPrecisionPurpose-specific search/resource restriction — not a blanket detector-use banOperationsClosed to public / landing prohibited
Permit: Refuge-specific special-use authorization may be required; no permission inferred from public access
Verified: 2026-08-29