Just off the Frost River, look for Bologna Lake (I think that is right).  We actually stayed at the campsite there.  Not much to write home about, but we had a great time fishing Northerns.  Nothing huge...but a fish on almost every cast.  We saw little schools of minnows jumping out of the water.  Almost everytime we cast into them we had a fish on...it was a lot of fun.

There was also was a lot of Beaver at work on that route.

-PG