Community members found the girl badly injured, and RCMP officers were called to the scene around 6 p.m. Tuesday.
The girl was rushed to a nursing station where she was pronounced dead, RCMP said.
RCMP said two large dogs of an unknown breed were destroyed by community members.
According to officers, the dogs belonged to a community member, but they were not known to the girl before they mauled her.
Officers are investigating and an autopsy has been ordered.
The girl's death is the second fatal mauling in a month in Manitoba. In late March, a seven-year-old girl was mauled to death by two Alaskan malamute dogs in Oakbank.
The dogs, owned by a friend of the family, were later euthanized.