MP, The lakes and campsites that have problem bears are usually the places that get concentrated visitation. Places near entry points where campers stack up are more likely to have habituated bears.

Basically you have 2 options. You can stash your food or hang it. If you hang it my advice is not to hang it where everybody else does, especially if it is a campsite with heavy use. I gave up on hanging long ago. The right trees that meet the proper criteria are to inconsistent to make me happy.

I took my cue from Cliff Jacobson who is a confirmed stasher. He hides his food out of the main campsite area. The trick with this is to be absolutely odor free. If they can't smell it they will walk right by every time.

If the thought of bears make you nervous read "Bear attacks, causes and avoidance" by Stephen Herrero. By the end you will be terrified ;). Some pretty rough experiences. But you will certainly be educated and  understand it is all about odors. And then of course there is the habituated bear which has learned which sites to visit and which trees they have gotten grub before.........