Mont. Code Ann. § 77-6-402
The pledgee of such lease or the mortgagee of such leasehold interest shall, within 30 days after receipt of the pledge agreement or mortgage, file it or a certified copy thereof with the department.
History: En. Sec. 2, Ch. 52, L. 1947; amd. Sec. 21, Ch. 121, L. 1965; amd. Sec. 4, Ch. 22, L. 1971; amd. Sec. 26, Ch. 428, L. 1973; R.C.M. 1947, 81-426.