Placer mining was first done many years ago on lower Putah Creek in southwestern Yolo County. At one time a small mining camp existed where the creek enters the Sacramento Valley from the Coast Range near the present town of Winters. Small-scale placer mining was done here again in the 1930s, when several thousand dollars worth of gold was produced. Also at one time occasional sluicing was done on Cache Creek to the north near the town of Capay. Several narrow quartz veins containing traces of gold were prospected in the Coast Range to the west.
Walts, W. L., 1890, Yolo County, gold: California Min. Bur. Rept. 10, p. 790.