Tex. Natural Resources Code § 191.132: DAMAGE OR DESTRUCTION.

(a) No person may intentionally and knowingly deface American Indian or aboriginal paintings, hieroglyphics, or other marks or carvings on rock or elsewhere that pertain to early American Indian or aboriginal habitation of the country.

(b) A person who is not the owner shall not wilfully injure, disfigure, remove, or destroy a historical structure, monument, marker, medallion, or artifact without lawful authority.

Acts 1977, 65th Leg., p. 2688, ch. 871, art. I, Sec. 1, eff. Sept. 1, 1977.