Upon each placer mining claim located after March 14, 1935, until patent is issued, not less than $100 worth of labor shall be performed or improvements made during each year for each 20 acres or excess fraction contained in the claim.
AS 27.10.130
Value of labor or improvements required on placer claims
Official source: Alaska State Legislature. Reproduced from public-domain Alaska statutes; confirm against the official source for the current text. Not legal advice.