Take US Hwy 550 (the San Juan Skyway) to Silverton. Drive down Silverton's paved main street (Greene Street) through town. Just past the County Courthouse, Museum and Jail, go over the bridge and take a right turn onto County Road 2.
Continue on CR 2 for two miles - passing the Mayflower Mill where the road becomes gravel - then two more miles to the old town of Howardsville. Go past the "Alpine Loop" sign, cross the creek and immediately turn right onto County Road 4-A. Continue on CR 4-A 3/4 mile to the mine. Follow the blue and white "Mine Tour" directional signs that are located along the way after you leave the Silverton town limits.