Is that up south summit/Benson creek?
In the early 90's I was falling timber for a helicopter outfit, this one drainage on the N.summit had several moose, including one nice Bull we flew over. One of the crew for the helicopter found a huge drop horn while we were there. For several years I would go through there and never failed to see moose sign. haven't been in there for the last 10 years, so things could have changed.
The other two areas I mentioned still have moose...