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.
Structure Alaska Statutes
Chapter 10. Location and Development of Mining Claims on Federal Public Domain
Article 2. Placer Claims on Federal Public Domain.
Sec. 27.10.090. Sections applicable to precious-metal placers only.
Sec. 27.10.100. Limits on size of individual placer claims.
Sec. 27.10.130. Value of labor or improvements required on placer claims.
Sec. 27.10.140. Location in violation of AS 27.10.090 - 27.10.140 is void.