Walk into the stately 1854 Casa Grande manor and discover how local mercury mining connects to the California gold rush. Return to the 19th century as you view photographs of the underground mine workings. A mine tunnel display gives a glimpse of underground work. Explore artifacts and models showing the evolution of mercury processing. Artifacts from Cornish, Mexican, and Chinese mining families depict how the “hill” communities lived and worked together. Casa Grande’s Victorian era rooms reflect the lifestyle of a mine manager’s family.