Topaz Mill is an historic old mill on the North Fork. It was first established in 1840. The present mill was built in 1896 and has been restored. Located several miles south of Highway 76, Topaz Mill was once the center of a thriving community including a general store, blacksmith shop, cannery, barber shop and post office.

The three-story building housed a fully automated mill which produced flour as well as meal. The mill's top capacity was about 40 barrels of flour a day, each weighing 96 pounds.

Milling operations gradually subsided during the 1930s. The general store remained open until 1945. At present the mill has been restored by a private owner and is in working condition.