Mont. Code Ann. § 2-1-102
(2005)

Sovereignty and jurisdiction of the state

The sovereignty and jurisdiction of this state extend to all places within its boundaries as established by the constitution, excepting such places as are under the exclusive jurisdiction of the United States.

History:
En. Sec. 40, Pol. C. 1895
Re-en. Sec. 21, Rev. C. 1907
Re-en. Sec. 20, R.C.M. 1921
Cal. Pol. C. Sec. 33
Re-en. Sec. 20, R.C.M. 1935
R.C.M. 1947, 83-102(part).