24 U.S.C. § 154 : US Code - Section 154: Unlawful intrusion, or violation of rules and regulations

Search 24 U.S.C. § 154 : US Code - Section 154: Unlawful intrusion, or violation of rules and regulations

All persons who shall unlawfully intrude upon said reserve, or
who shall without permission appropriate any object therein or
commit unauthorized injury or waste in any form whatever upon the
lands or other public property therein, or who shall violate any of
the rules and regulations prescribed hereunder, shall, upon
conviction, be fined in a sum not more than $1,000, or be
imprisoned for a period not more than twelve months, or shall
suffer both fine and imprisonment, in the discretion of the court.