United States v. Locke

The primary question presented by this appeal is whether the Constitution prevents Congress from providing that holders of unpatented mining claims who fail to comply with the annual filing requirements of the Federal Land Policy and Management Act of 1976 (FLPMA), 43 U. S. C. § 1744, shall forfeit their claims.

I

From the enactment of the general mining laws in the 19th century until 1976, those who sought to make their living by locating and developing minerals on federal lands were virtually unconstrained by the fetters of federal control. The general mining laws, 30 U. S. C. §22 et seq.,…