Summary

Joseph P. Bradley Mining Company v. Tarbet — Opinion of the Court

As the law stands, we think that the right to follow the dip of the vein is bounded by the end lines of the claim, properly so called; which lines are those which are crosswise of the general course of the vein on the surface. The Spanish mining law confined the owner of a mine to perpendicular lines on every side, but gave him greater or less width according to the dip of the vein.
Source: Wikisource

Joseph P. Bradley Mining Company v. Tarbet — Opinion of the Court

Of what use would a location be, for any purpose of defining the rights of parties, if it could be thus made to cover a lode or vein which runs entirely away from it. Though it should happen that the locator, by sinking shafts to a considerable depth, might strike the same vein on its subterranean descent, he ought not to interfere with those who, having properly located along the vein, are pursuing their right to follow the dip in a regular way.
Source: Wikisource

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