Wyatt Earp worked to extract geological materials from the earth.
Mining is the extraction of valuable minerals or other geological materials from the earth usually from an orebody , lode , vein , seam , reef or placer deposits . Wyatt Earp . He was at different times a constable , city policeman , county sheriff , Deputy U.S. Marshal , teamster , buffalo hunter , bouncer , saloon-keeper , gambler , brothel keeper , miner , and boxing referee .