OS -

I've only caught a couple of them in Quetico that I can recall... both on the same trip.  It happened in southern Pickerel Lake, as you begin to approach the portage that leads into the "B Chain" of lakes.  It was about 5 years ago or so.  I believe I was fishing for walleye at the time, running around 15 feet deep with some sort of deeper-diving minnow lure.  The fish were pretty good sized (2-3 pounds, maybe?).  I only recognized them because whitefish were the mainstay of a trip I took down the Allagash Waterway in Maine... back in the dawn of time.  We caught LOTS of them, there.

You're right; whitefish are good eating.  However, these particular fish were tossed back.

FYI

Jimbo   8-)