Montana Code Annotated — Title 15 (Taxation)
Mont. Code Ann. § 15-6-132 — Class Two Property -- Description -- Taxable Percentage
15-6-132 . Class two property -- description -- taxable percentage. (1) Class two property includes the annual gross proceeds of metal mines.
(2) Class two property is taxed at 3% of its annual gross proceeds, as defined in 15-23-801 .
Source: official text