The 32-year-old woman, whose name was not released by the California Highway Patrol, sustained major injuries in the accident, which occurred at 10:20 a.m. in the 7600 block of Bridge Arbor Road in the north Lakeport area.
According to the CHP, the woman's 37-year-old husband was loading a 1997 Land Rover onto an automobile tow-dolly which was attached to a Chevy Suburban.
The woman was standing at the back of the Suburban – and may have been straddling the hitch – signaling for the man to drive forward, the report said.
The CHP said the man didn't bring the vehicle to a stop on the tow-dolly and the woman was trapped between the two vehicles.
The woman was flown by air ambulance to Santa Rosa Memorial Hospital, according to the report.
CHP Officer Nick Powell is the incident's investigator.
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