Visit the site of an old dam from around 1890 commonly referred to as China Dam. You can drive to it with your vehicle. It is located a couple miles north of Lake Pleasant, just outside the Park boundary, on Humbug Creek. A hole in the center has kept it from silting in. It was used to store water for a high pressure mining operation along Humbug Creek. A flume also can be found that was used to transport water to mining operations downstream.