The United Verde Copper Company was a mining company located in the Verde Mining District near Jerome, Yavapai County, AZ. It was organized in 1882 by Fred Thomas Treadwell and Eugene Jerome; and was later sold to W.A. Clark in 1889.
The collection includes correspondence and other papers relating to the operation and financing of the mine in Jerome. The letters are mainly from Eugene Jerome, secretary-treasurer of the company, and Frederick Murray, agent and mine superintendent; many of the letters concern the actions of Frederick Tritle, former Governor of Arizona, in regard to the mine.