30 U.S. Code § 527 - Determination of unpatented mining claims
If any claimant under any unpatented mining claim heretofore located which embraces any of the lands described in any notice published in accordance with the provisions of subsection (a) of this section shall fail to file a verified statement, as above provided, within one hundred and fifty days from the date of the first publication of such notice, such failure shall be conclusively deemed, except as otherwise provided in subsection (e) of this section, (i) to constitute a waiver and relinquishment by such mining claimant of any and all right, title, and interest under such mining claim as to, but only as to, Leasing Act minerals, and (ii) to constitute a consent by such mining claimant that such mining claim and any patent issued therefor, shall be subject to the reservation specified in section 524 of this title, and (iii) to preclude thereafter any assertion by such mining claimant of any right or title to or interest in any Leasing Act mineral by reason of such mining claim.
If any verified statement shall be filed by a mining claimant as provided in subsection (a) of this section, then the Secretary of the Interior or his designated representative shall fix a time and place for a hearing to determine the validity and effectiveness of the mining claimant’s asserted right or interest in Leasing Act minerals, which place of hearing shall be in the county where the lands in question or parts thereof are located, unless the mining claimant agrees otherwise. The procedures with respect to notice of such a hearing and the conduct thereof, and in respect to appeals shall follow the then established general procedures and rules of practice of the Department of the Interior in respect to contests or protests affecting public lands of the United States. If, pursuant to such a hearing the final decision rendered in the matter shall affirm the validity and effectiveness of any mining claimant’s right or interest under the mining claim as to Leasing Act minerals, then no subsequent proceedings under this section shall have any force or effect upon the so-affirmed right or interest of such mining claimant under such mining claim. If at any time prior to a hearing the person requesting publication of notice and any person filing a verified statement pursuant to such notice shall so stipulate, then to the extent so stipulated, but only to such extent, no hearing shall be held with respect to rights asserted under that verified statement, and to the extent defined by the stipulation the rights asserted under that verified statement shall be deemed to be unaffected by that particular published notice.
If any applicant, offeror, permittee, or lessee shall fail to comply with the requirements of subsection (a) of this section as to the personal delivery or mailing of a copy of notice to any person, the publication of such notice shall be deemed wholly ineffectual as to that person or as to the rights asserted by that person and the failure of that person to file a verified statement, as provided in such notice, shall in no manner affect, diminish, prejudice or bar any rights of that person.