It's probably important to note in discussing grizzlies we're not talking about a bigger, meaner version of black bears that want to take our pick-a-nick baskets. This is not a case of oversized opportunistic semi-domesticated problem bears such as in the lower 48. We're talking about a very different critter. A truly wild animal (in most cases not human-conditioned) that considers itself atop the food chain. And with good reason. We do not want to inadvertently surprise a grizz. We do not want to get near its kill. We do not want to get near its cubs. And we do not want to resemble a snack.

I don't hike in grizzly country myself but I know plenty of folks who do--very experienced folks who all carry spray. I will to, should I ever head that way.

I'd read everything you can on grizzly behavior before going--there's plenty available--them make up your mind as to whether to carry it. I'll wager the decision will be yes.
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--Rick