Artifact Collecting Laws in the US: Public Land, Tribal Land, State Land and Private Property
For American collectors, the most important fact about an artifact is often not what it is but where it came out of the ground. The same stone point can be lawful to keep if it was picked up with permission on a family farm, and a federal offense if it came from a national forest or a reservation. Buyers inherit that history: an object removed illegally does not become clean because it was sold.
This guide walks through the main layers of US law in general terms. It is not legal advice, and rules vary a great deal by state and by land managing agency, so treat it as a map of what to check rather than a set of answers.
Why location matters more than age
US law does not treat all old objects the same way. It mostly asks three questions: who owns or manages the land, whether the object is an archaeological resource (or a burial, funerary object or sacred item), and whether the person removing it had permission. A buyer should ask the same three questions of every American artifact, because federal law also reaches people who buy, sell or transport material that was taken illegally.
Federal land: ARPA and the Antiquities Act
The Antiquities Act of 1906
The first federal law protecting archaeological sites, the Antiquities Act prohibited appropriating, excavating or damaging historic or prehistoric ruins and objects of antiquity on federal land without permission. It is also the law presidents use to create national monuments. Its criminal provisions were later found vague by one federal appeals court, which is part of why Congress passed a more detailed law.
The Archaeological Resources Protection Act (ARPA), 1979
ARPA is the main tool today. In general terms it:
- Prohibits excavating, removing, damaging or defacing archaeological resources on federal or Indian lands without a permit.
- Prohibits selling, buying, exchanging, transporting or receiving archaeological resources removed from those lands in violation of the law.
- Prohibits interstate or foreign commerce in archaeological resources taken in violation of state or local law, which gives state rules federal teeth when items cross state lines.
- Carries civil and criminal penalties, including forfeiture of the objects and of equipment used.
Under ARPA, an "archaeological resource" is broadly material remains of past human life or activity that are of archaeological interest and at least 100 years old: tools, pottery, weapons, rock art, structures, graves and human skeletal material among them.
ARPA contains a narrow provision about arrowheads found on the surface of the ground. Collectors sometimes read this as permission to pick up points on federal land. It isn't. Other federal laws and agency regulations still apply, national parks prohibit removing anything, and many forests, monuments and wildlife areas prohibit collecting artifacts outright. Before picking anything up on public land, check that specific agency's current rules. If you can't confirm it's allowed, leave it.
Agency rules
Different federal agencies manage land under different regulations:
| Land type | General position on artifacts | What to check |
|---|---|---|
| National parks and park units | Removing natural or cultural objects is prohibited | Nothing to collect. Photograph and leave in place. |
| National forests | Removing or damaging archaeological resources is prohibited | Forest Service regulations and the local ranger district |
| BLM land | Archaeological resources protected; some rules allow limited rockhound collecting of certain natural materials, which is different from artifacts | The local BLM field office |
| National wildlife refuges, military land, Corps of Engineers lakes | Generally prohibited without authorization | The managing office's posted rules |
| Indian lands (reservations and trust land) | ARPA plus tribal law; tribal consent required | The tribe's historic preservation office |
Rockhounding allowances for things like certain rocks or petrified wood on some public land do not extend to artifacts. A stone tool is a human-made object, not a mineral specimen.
Tribal land
Tribal nations have their own laws and governments, and many have Tribal Historic Preservation Officers. Collecting on reservation or trust land without explicit tribal authorization exposes you to tribal and federal law. Beyond legality, many items connected to Native communities carry religious and cultural meaning. The Native American Graves Protection and Repatriation Act (NAGPRA) adds federal protection for Native American human remains, funerary objects, sacred objects and objects of cultural patrimony, including a ban on trafficking in many of them. The simple rule for collectors: never buy, sell or collect human remains or burial items, and treat anything described as ceremonial or sacred with great caution.
State land and state laws
Every state has some form of antiquities or historic preservation law, and they differ widely. Common features include:
- Protection of archaeological sites on state-owned land, including state parks, state forests, state wildlife areas and lands under navigable waters.
- Unmarked burial laws that protect human remains and associated grave goods anywhere in the state, including on private land. Disturbing a burial is typically a crime, and finds must be reported.
- Permit systems for archaeological work on state land, usually run through the State Historic Preservation Office (SHPO) or a state archaeologist.
- In some states, rules covering shipwrecks and artifacts in rivers, lakes and coastal waters.
Because ARPA prohibits interstate commerce in items taken in violation of state law, a point removed from a state park and sold to a buyer in another state can become a federal matter.
Private land
On private land, artifacts generally belong to the landowner. That means:
- Get written permission from the owner before you look, and keep it with your finds.
- Understand that permission to hunt, fish or walk is not permission to collect or dig.
- Never disturb human remains or grave goods. Stop, leave everything in place, and contact local law enforcement or the state archaeologist as your state requires.
- Check whether the land is under a conservation easement or other agreement that restricts disturbance.
- Record precise find locations. A find without location data loses most of its research value, and location records are your proof of lawful origin.
- Consider reporting significant sites to your SHPO. Many states welcome collector reports, and they help protect sites from development.
What this means for buyers
If you buy American artifacts, ask for the same things you would want if you had found them yourself:
- Find location at least to county and state, and land status (private, with owner name if the seller will share it).
- Landowner permission documentation, or a chain of ownership showing the item has been in a collection for a long time.
- Collection history: old collection catalog numbers, labels, photographs or publications.
- No burial context. Avoid anything described as "grave goods," "burial," "mound" or "from a cave burial."
- No ambiguity about public land. If a seller says it came from a national forest, BLM land or a state park, do not buy it.
Marketplaces have their own rules
Online marketplaces generally restrict artifacts, and many prohibit items taken from protected land, grave-related items, and human remains outright. Their policies can be stricter than the law and can change at any time. Before buying or listing, read the current prohibited and restricted items policy for that marketplace. A listing that is still up is not evidence that it complies.
If you already own something with an uncertain origin
Many collectors inherit material with no records at all. Don't sell it on a guess. Write down everything family members remember about where pieces came from, separate anything that could be human remains or burial material, and get advice from your SHPO, a university archaeology department, or a lawyer. For burial-related or sacred items, contact the relevant tribe or the federal NAGPRA program about appropriate steps. Our post on organizing an inherited artifact research file covers how to build the record.
Frequently asked questions
Can I keep an arrowhead I found on a hiking trail?
If the trail is in a national park, no. On other federal, state or tribal land, the answer is usually no as well, and the specific rules depend on the managing agency. Photograph it, note the location, and leave it in place. If you think it's significant, report it to the land manager.
Do artifacts on my own land belong to me?
Generally, artifacts on private land belong to the landowner, but human remains and burial items are protected by state law in most states regardless of who owns the land. Check your state's unmarked burial law and contact the state archaeologist if you find anything that might be a burial.
What counts as an archaeological resource under ARPA?
In general terms, material remains of past human life or activity that are of archaeological interest and at least 100 years old, such as tools, pottery, weapons, structures, rock art, graves and human remains.
Is it legal to buy artifacts that were found on private land?
It can be, if the item was collected with the landowner's permission, was not taken from a burial, and complies with state law. Ask for documentation of the find location and permission, and avoid anything with an unclear origin.
Who do I contact with questions about my state's rules?
Your State Historic Preservation Office (SHPO) or state archaeologist is the right starting point. For federal land, contact the managing agency's local office. For tribal land, contact the tribe's historic preservation office.
The bottom line
For American artifacts, land status is everything. Federal, tribal and state lands are largely off-limits to collecting, burials are protected almost everywhere, and private land requires permission. As a buyer, insist on find location and permission records, avoid anything tied to burials or public land, and check marketplace rules before you buy or list. The collectors who stay out of trouble are the ones who treat "I don't know where it came from" as a reason not to buy.