Lyonsville in Tehama County, California was the site of the Lyonsville Mill, a major lumber operation which was once the largest sawmill in Northern California. It was located between the north and south forks of Antelope Creek, high above Hogsback Ridge. The mill served logging operations around Antelope Creek, and around it grew a town of the same nameā¦Lyonsville in Tehama County, California was the site of the Lyonsville Mill, a major lumber operation which was once the largest sawmill in Northern California. It was located between the north and south forks of Antelope Creek, high above Hogsback Ridge. The mill served logging operations around Antelope Creek, and around it grew a town of the same name, with two saloons, a community hall, a general store, a post office, and machine and blacksmith shops. At its peak, there were more than 1000 people in the town.