She was drinking and driving when her and her car disappeared without a trace.

Lark Loraine (Mosher)Montague was 55 years old when she disappeared from Magna, Utah.
September 21, 2007,  at 9 a.m. her husband took and Ambeian and waited for sleep.
Lark had been drinking a lot lately and taking prescription pills.
After her husband went to sleep, she drove to a neighbor's house and stayed there drinking until 3 a.m.
She left the neighbor's house, the neighbor followed her home in another car.
The neighbor said he watched Lark pull into her driveway, but as he drove away, he saw her backing out.
She hit her chain-link fence, which her family found pieces of a busted taillight on the ground the next day.
About six the next morning, the Lark's son woke up the dad telling him that Lark wasn't home yet.
Lark's husband searched nearby bars.
He distributed fliers.
Search parties and hikes up nearby canyons were conducted.
Lark has never been found.
She was last seen driving a silver 2002 Chevy Trailblazer, with the license plate number 215LTE.
At the time she went missing, Lark was 4'11" tall, 105 lbs, with light brown hair and brown eyes.
She might have been carrying a white leather purse.
She suffers from Type 2 diabetes, high blood pressure and depression.