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. ”
