C.F.R. » Title 43 » CHAPTER II—BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR › SUBCHAPTER C—MINERALS MANAGEMENT (3000) › PART 3832—LOCATING MINING CLAIMS OR SITES › Subpart D—Tunnel Sites

43 C.F.R. § 3832.43

How may I use a tunnel site?

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You may use the tunnel site for subsurface access to a lode claim or to explore for and acquire previously unknown lodes, veins, or ledges within the confines of the tunnel site.