http://deanperezbc.blogspot.ca/2015/03/hurley-silvermine.html
1 thing that I always wanted to do was try to go along that rugged looking ridge to the north of Duffy Lake. And even before that, a long time ago I was able to drive where you went and the road was in fairly good shape at that time.
So some years ago Alena Dzujkova and I parked at the Mt Rohr parking area and did a 4 day traverse from west to east along that ridge to where you entered and left. We saw 1 grizzly in the Common Johnny drainage. And yes, coming out the alder was horrific!
David Scanlon
Thanks for the info, David. This will be my summer trip, a traverse from Downton to Marriott