McMillen v. Ferrum Mining Co.

Background

The dispute involves miners who claimed the Eulalia lode and a competing claim. The plaintiffs said their grantor complied with United States law, Colorado law, and mining district rules when they located the Eulalia claim. They did not rely on their own discovery. Instead they argued that McMillen and his co-owner had already found ore in the nearby Pocket Liner shaft and that McMillen’s knowledge of that vein made the Eulalia location valid.

Reasoning

The Court addressed whether mere knowledge of a previous discovery can serve as a valid basis for a new location. It explained that Colorado statutes require concrete steps before filing a location certificate, including sinking a discovery shaft at least ten feet deep, posting a notice with the lode name, locator name, and discovery date, and marking the claim boundary. The Court held that a locator who bases a claim on a specific discovery and posts the stake cannot later abandon that discovery and rely on another. Because the plaintiffs’ proof only showed prior knowledge and did not demonstrate that the locator had adopted the earlier discovery or complied with the statutory acts, the proof failed. The opinion also notes that no federal question was timely raised until rehearing, which was too late.

Real world impact

The ruling means miners must follow Colorado’s statutory discovery steps to perfect a location. Claimants cannot rely solely on knowing about ore elsewhere. Disputes over mining claims are treated as local law matters unless a federal issue is timely presented.