43 CFR § 3735.2
No limitation of rights where claimant in diligent prosecution of work when future withdrawals made
June 11, 2020
(a) Under section 5 of the Act the rights to a location made prior to any future withdrawal or reservation for power development or one on which the locator was diligently working to make a discovery of valuable minerals are not limited or restricted.
[35 FR 9737, June 13, 1970]