A release from the Mohave County Sheriff's office identified the woman killed in the crash of a small plane near Kingman as 38-year-old Heidi Sue Dowland of Prescott Valley.
The release adds that 43-year-old Christopher Adam Anderson of Prescott Valley was also injured.
Anderson was taken to an area hospital, and later moved to a facility in Las Vegas
A sheriff's office release says he is in critical condition.
The plane crash was reported at around 11:45 a.m. Sunday in the Hualapai Mountain Park.
Sheriff's officials say the Federal Aviation Administration and National Transportation Safety Board are overseeing the investigation into the cause.