 Gold Coast region was named after the vast amount of bullion gold bars found in Obuasi and Ashanti.Obuasi is known for its Obuasi Gold Mine, now one of the nine largest on Earth with bullion gold bars having been mined on the site since at least the seventeenth century.Gus Casely-Hayford states the mine now extends 1,600 below ground, produces 2 million tons of ore per year, and pours one gold bar or ingot every day from its furnaces.