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.
Appalachian National Scenic TrailMarylandNamed public place map search Captain John Smith Chesapeake National Historic TrailMarylandNamed public place map search Chesapeake BayMarylandNamed public place map search Civil War Defenses of WashingtonMarylandNamed public place map search Potomac Heritage National Scenic TrailMarylandNamed public place map search Star-Spangled Banner National Historic TrailMarylandNamed public place map search Washington-Rochambeau Revolutionary Route National Historic TrailMarylandNamed 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.
Manager/site confirmation required — exact parcel manager controls detector and recovery rules
Grade A · 100/100
National Park Service / underlying parcel manager
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.
DecisionConfirmation RequiredTrip readyNoPlanObtain Manager Site Confirmation Before TravelEvidenceCurrentScopeManager Or Site Confirmation RequiredPrecisionAuthoritative scope reviewed; exact recreational detector/recovery permission remains manager/site-specific
Permit: Resolve the exact underlying parcel manager and current detector/recovery rule before field use
Verified: 2026-08-29
Manager/site confirmation required — exact parcel manager controls detector and recovery rules
Grade A · 100/100
National Park Service / underlying parcel manager
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.
DecisionConfirmation RequiredTrip readyNoPlanObtain Manager Site Confirmation Before TravelEvidenceCurrentScopeManager Or Site Confirmation RequiredPrecisionAuthoritative scope reviewed; exact recreational detector/recovery permission remains manager/site-specific
Permit: Resolve the exact underlying parcel manager and current detector/recovery rule before field use
Verified: 2026-08-29
Manager/site confirmation required — exact parcel manager controls detector and recovery rules
Grade A · 100/100
National Park Service / underlying parcel manager
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.
DecisionConfirmation RequiredTrip readyNoPlanObtain Manager Site Confirmation Before TravelEvidenceCurrentScopeManager Or Site Confirmation RequiredPrecisionAuthoritative scope reviewed; exact recreational detector/recovery permission remains manager/site-specific
Permit: Resolve the exact underlying parcel manager and current detector/recovery rule before field use
Verified: 2026-08-29
Manager/site confirmation required — exact parcel manager controls detector and recovery rules
Grade A · 100/100
National Park Service / underlying parcel manager
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.
DecisionConfirmation RequiredTrip readyNoPlanObtain Manager Site Confirmation Before TravelEvidenceCurrentScopeManager Or Site Confirmation RequiredPrecisionAuthoritative scope reviewed; exact recreational detector/recovery permission remains manager/site-specific
Permit: Resolve the exact underlying parcel manager and current detector/recovery rule before field use
Verified: 2026-08-29
Manager/site confirmation required — exact parcel manager controls detector and recovery rules
Grade A · 100/100
National Park Service / underlying parcel manager
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.
DecisionConfirmation RequiredTrip readyNoPlanObtain Manager Site Confirmation Before TravelEvidenceCurrentScopeManager Or Site Confirmation RequiredPrecisionAuthoritative scope reviewed; exact recreational detector/recovery permission remains manager/site-specific
Permit: Resolve the exact underlying parcel manager and current detector/recovery rule before field use
Verified: 2026-08-29
Manager/site confirmation required — exact parcel manager controls detector and recovery rules
Grade A · 100/100
National Park Service / underlying parcel manager
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.
DecisionConfirmation RequiredTrip readyNoPlanObtain Manager Site Confirmation Before TravelEvidenceCurrentScopeManager Or Site Confirmation RequiredPrecisionAuthoritative scope reviewed; exact recreational detector/recovery permission remains manager/site-specific
Permit: Resolve the exact underlying parcel manager and current detector/recovery rule before field use
Verified: 2026-08-29
Manager/site confirmation required — exact parcel manager controls detector and recovery rules
Grade A · 100/100
National Park Service / underlying parcel manager
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.
DecisionConfirmation RequiredTrip readyNoPlanObtain Manager Site Confirmation Before TravelEvidenceCurrentScopeManager Or Site Confirmation RequiredPrecisionAuthoritative scope reviewed; exact recreational detector/recovery permission remains manager/site-specific
Permit: Resolve the exact underlying parcel manager and current detector/recovery rule before field use
Verified: 2026-08-29