Signs have been posted in one part of the foothills in western Boulder County that warn of an aggressive moose after a woman apparently got stomped on by a bull moose. Colorado Parks and Wildlife said they are investigating the reported attack, which happened on Wednesday afternoon west of the town of Jamestown.

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That victim was taken to the hospital after the moose injured her head and her back.

Colorado officials say the woman was walking a dog off-leash at the time, and that a majority of moose attacks involve dogs. Moose often view dogs as predators.

Wildlife officials advise people to always have dogs on a leash.

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