Montana Code Annotated · § 70-5-103 — Duty to inform owner when known

If a person finds money, goods, things in action, or other personal property or saves a domestic animal from drowning or starvation when the property is of a value of $10 or more and the person knows or suspects who the owner is, the person shall use reasonable diligence to inform the owner and make restitution without compensation, further than a reasonable charge for saving and taking care of the property. If the person fails to do so, the person is liable in damages to the owner and does not have a claim to any reward offered by the owner for the recovery of the thing or to any compensation for the person's trouble or expenses.