Always get permission on private land, ideally in writing. In the US, detecting is prohibited in national parks, and the Archaeological Resources Protection Act makes it illegal to dig or remove archaeological resources over 100 years old from federal and tribal lands. BLM and Forest Service land allow some recreational detecting outside protected sites; state and local parks set their own rules. In England and Wales, the Treasure Act requires reporting treasure.
Responsible detecting keeps sites open and history intact. Know the rules before you dig.
United States
| Land | General rule |
|---|---|
| Private land | Owner’s permission, ideally written |
| National parks | Prohibited |
| Federal and tribal lands | ARPA protects archaeological resources over 100 years old |
| BLM land | Recreational detecting often allowed outside protected sites; check claims |
| National forests | Often allowed outside heritage sites; check the district office |
| State parks | Varies; many require permits or ban it |
| City parks and beaches | Varies by city; check ordinances |
Rules change and vary locally. Contact the land manager before you go.
United Kingdom
In England and Wales, finds that meet the Treasure Act definition must be reported to the coroner. The Portable Antiquities Scheme records other archaeological finds voluntarily. Always have landowner permission.
Code of ethics
- Get permission first.
- Fill every hole and leave no trace.
- Pack out trash you dig up.
- Report significant finds as the law requires.
- Respect protected and historic sites.
Start with the right gear: choosing your first detector. Browse hobby basics.
Common questions
Is metal detecting legal in national parks?
No. Metal detecting and removing objects are prohibited in US national parks.
Can I metal detect on BLM land?
Recreational detecting is generally allowed in many areas, but not at archaeological or historic sites. Check with the local BLM office and for mining claims.
Do I need permission to detect on private land?
Yes. Get the landowner's permission, preferably in writing, and agree how finds will be handled.
What is ARPA?
The Archaeological Resources Protection Act of 1979, which protects archaeological resources on federal and tribal lands.