As of 7/2/7, everything is melted from the road. If you really want, you can drive to the mine, and even beyond to the road's end at the lake about 1/2 mile further up. Today most vehicles stopped at the 2nd or third stream crossings.
The lower stream crossing (the most serious one) is easy. The water is fast, but not especially deep. The bigger challenge is climbing down into, and up out of, the streambed. There is about a 2 ft. drop off to enter the stream while going uphill, and an even bigger climb when exiting on the far side. But in 4WD, not a problem. I didn't even use low-range today on our little Mercedes ML320 V6.