U.S. Code / Title 30 — Mineral Lands and…Title 30ChapterChapter 16—Mineral Development of Lands Withdrawn for Power DevelopmentContents§ 621. Entry to lands reserved for power development§ 622. Liability for damage, destruction, or loss of claim§ 623. Recording and reporting of unpatented claims; time§ 624. Protection of existing valid claims§ 625. Prohibition of unspecified use