 As they walked, they noticed the gleam of metal where the chain had scraped away the overlying dirt, and upon investigation, they found what would develop into a significant silver lode.The mules were tracked to the nearby camp of well-known prospector Ed Schieffelin, who had been prospecting extensively in the area, and who had staked claims to many of the Tombstone area mines.Unhappy that two competitors had discovered a claim in what he considered to be his territory, Schieffelin disputed the ownership of the claim.