Actually, hanging up the bear canister will make it more attractive to bears, many of whom have learned to regard a hanging bag as a piñata full of treats. It also gives the bear a convenient way to carry the canister.

It's usually fairly easy to find a depression or a spot surrounded by rocks/logs/what have you so the bear can't roll it away.

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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey