I saw one also in that area. Was with my son and a friend doing a summer scouting trip. Hunted that area a few times. I killed a black bear with a bow before myself and have killed many big game animals and hunted all over the country. No doubt in my mind what I saw. I did report it to the biologist for the district also. Had a interesting conversation with him.Not sure why I'm posting this as no one will probably believe me.
2012 I killed bull in San Juans. 3 days later bro in law and I hunted back to kill site.
We set up calling for a bit when 200 lb black bear came running out 300 yds above us.
It kept looking behind it. As we glassed it, I said to my bro in law "don't move, there is a brown bear coming".. 200 yds above us stepped out a huge brown bear. It had the big bull on its back, and silver tip fur. Very easy to see.
It turned and started towards us as my bull carcass was between him and us. At about 150 yds from us we scrambled and got out of there.
We didn't sleep next nights.
We know what we saw. We have killed many black bears before too.
Believe what you like. This was our experience.