The Boulder City Ghost town and mine is located in the Boulder Basic north of Ketchum. It has numerous structures and many mining artifacts. It’s a popular place for snowmobiles and ATVs.
Head north of Ketchum on Highway 75. Shortly after the sign for Phantom Hill, you will see a large dirt parking lot to your right. If you have enough clearance, you will be able to drive down the road. If not, you will need to park here and walk. It’s about a one-way 6 mile hike to the townsite.