I drove my Chevy Tahoe down to Lupine today and some friends and I walked down to Cabin Flat and back. The road was bumpy in places, but fine.
Lupine is in great shape (and there's even a nice supply of toilet paper in the out houses!!).
There are 2 good camping sites with picnic tables & fire rings at Cabin Flat, and the out house is still standing and serviceable. The stream has a good flow of water in it.
Unfortunately, someone has made a road around the blocked off road to Cabin Flat, and it appears that vehicles of some sort have been driving the road. We found tire tracks all of the way to Cabin Flat.
There was very little trash in the area, and we carried out what we found.