Idaho Code § 47-1101
Whenever a judgment, attachment or mortgage creditor has a lien upon unpatented mining claims in this state and the annual assessment work required by the provisions of section 2324 of the Revised Statutes of the United States, as amended by act of congress of August 24, 1921, has not been performed upon such mining claims by the first day of June in any year, the judgment, attachment or mortgage creditor may apply to the court having jurisdiction for an order allowing such judgment, attachment or mortgage creditor to perform such annual assessment work upon such unpatented mining claims in order to prevent a forfeiture of such mining claims and to preserve the lien of the judgment, attachment or mortgage until the final issuance of sheriff's deed.
Idaho Code § 47-1101