(FOX40.COM) — The Tuolumne County Sheriff's Office is asking for the community's help in finding a missing, at-risk 75-year-old woman with dementia.

Pamela Duston was last seen around 1:30 a.m. on Sunday at her home in the area of Mariposa Drive in Long Barn.

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Her family discovered her to be missing early in the morning, TCSO said.

Deputies believe Duston left sometime between 1:30 a.m. and 7:30 a.m. in an unknown direction.

She is described to have a thin build, around 5 feet 9 inches tall, with dark hair in a ponytail.

The sheriff's office said she was last seen wearing a black and white flannel shirt, white pajama pants and gray Keds shoes.

Anyone with information on Duston's whereabouts is asked to call the Tuolumn

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