The 25-year-old from the O'Chiese First Nation was discovered on Friday wandering in a remote area near Rocky Mountain House.
She had a broken jaw and infected cuts and was taken to hospital.
Cpl. Nick Munro says the woman survived on river water and berries.
He says she has trouble speaking because of her jaw, but has been able to identify her alleged attacker.
Kevin Roy Gladue, who is 36, faces charges of sexual assault, aggravated assault and obstructing a peace officer.
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