43 CFR § 4300.90
What is a trespass?
June 11, 2020
(a) A trespass is any use of Federal land for reindeer grazing purposes without a valid permit issued under the regulations of this part; a trespass is unlawful and is prohibited.
(b) Any person who willfully violates the regulations in this part will be deemed guilty of a misdemeanor, and upon conviction is punishable by imprisonment for not more than one year, or by a fine of not more than $500.