OK, I'm going to give one more hint that should give it away.....This picture was taken on one end of the trail which isn't very well used.  The other end of the trail is VERY well used.

Bull of the Woods Trail 550.

OK, one last hint.  It is a north/south trail, and this was taken on the little used southern part of the trail.  The northern end of the trail is heavily used.

The Bagby Trail 544?

Donovan

Donovan said:

The Bagby Trail 544?

Donovan

Bingo!  This was taken on the very south end of the trail, a little north of Elk Lake.  It is a pretty long rockslide.  I'm thinking this area of the trail is where the picture was taken.  You can see the long rock area in that topo map.