Randal Birkey was commissioned by a Denver, Colorado graphic design firm in the 1980′s to prepare a series of illustrations on “How Gold is Made.” The illustration series was to be used by their client, Santa Fe Pacific, (now Newmont Gold), in printed corporate communication brochures, posters and other tools. The series was modified several times over the years to reflect changes in company ownership and name, as well as changes and enhancements to the gold mining process.