The law of the search

Metal Detecting and Treasure Laws in Montana

Restricted
Metal detecting. Effectively banned in parks (no disturbing topsoil)
Treasure trove and found property. State claims antiquities; no finders-keepers on public ground
Submerged and wrecks. Holds title to abandoned wrecks (ASA)

Worth knowing

Removal of man-made items over 100 yrs old is illegal.

This is a plain-language starting point, not legal advice. The rules change and vary by county, city, park, and parcel, and federal land carries its own restrictions. Always confirm with the specific land manager or agency before you search, and record and report finds where the law requires it.

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