Drove this yesterday. A couple things that might help- the fork in the road does not have a sign for Sherman on it. Bill‘s description describes a sign, but it‘s down. It does say, I think, County 2A (or 2B). If you go past, you‘ll run into the mine immedately, so don‘t stress.
From there, Roach says to go 2.4 miles, and Bill says to go 3.0 miles to the trailhead, which is unmarked on the side of the road. By my measurements (could be off), there was a very small cairn at 3.0, but the trailhead was more like about 3.3 miles. I parked to soon and had to bushwack some willows. It will be much easier in the light, but I was making the drive at 11:00 at night and we left at dusk. There is a definite pull-off space where the trail begins. This picture from the top of Sherman shows how close to the end of the road you go. Stay high on the left of the basin.
Photos (click for slideshow):