United Comstock Merger Mill

The United Comstock Merger Mill site is located on public lands near Gold Hill, Nevada. The mill was built in 1922 to process local gold and silver ore utilizing cyanide vat leaching in what was then described as the largest concrete mill in the United States, which makes it historically significant. Since abandonment in 1924, this seven-acre mill site has been used as a place to hold parties, post graffiti, and conduct paintball wars despite physical safety hazards from falling concrete, underground mill sumps filled with water, and holes in the concrete flooring. The Bureau of Land Management will soon remove the United Comstock Merger Mill at American Flat in Storey County, Nev., to mitigate hazards. The mill buildings will be demolished, voids and tunnels filled, and building footprints and other disturbed areas covered with native borrow material or soil and re-vegetated.