Mont. Code Ann. § 81-4-201
It is unlawful for an owner or person in control of swine, sheep, llamas, alpacas, bison, ostriches, rheas, emus, or goats to willfully permit the animals to run at large.
History: En. Sec. 1165, Pen. C. 1895; re-en. Sec. 8838, Rev. C. 1907; re-en. Sec. 3393, R.C.M. 1921; re-en. Sec. 3393, R.C.M. 1935; amd. Sec. 1, Ch. 169, L. 1945; R.C.M. 1947, 46-1704; amd. Sec. 10, Ch. 166, L. 1989; amd. Sec. 5, Ch. 417, L. 1993; amd. Sec. 9, Ch. 206, L. 1995.