The person at the center of this case
Mary Alice Helm
Missing Person · Open
19 years waiting · since 2007
Missing Person: Mary Alice Helm
Justice for Mary Alice Helm — the trail went cold in 2007, but the truth hasn't.
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Key leads to think about
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witness
Lead #1Were there any witnesses who saw Mary Alice Helm during her walk on January 20, 2007?
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clue
Lead #2What was the specific route or destination of her walk that day?
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evidence
Lead #3Have any personal items or clothing matching her description been found in the Alta area?
Mary Alice Helm, a 44-year-old woman, disappeared on January 20, 2007, while staying with friends in Alta, California and went out for a walk alone. Nearly two decades later, her whereabouts remain unknown, and investigators have not determined what happened during her walk or where she may be. Anyone with information about Mary Alice Helm's disappearance is urged to contact the Placer County Sheriff's Office, as even small details could help solve this long-standing case.
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
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location
Lead #4Were there any remote or dangerous areas near where she was staying that she might have accessed?
Have information about any of these leads?
Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP3913. Missing person: Mary Alice Helm.
Last known contact: 2007-01-20 in Alta, Placer, CA. Circumstances: Ms.
Helm was staying with friends in the Alta area. She was home alone and apparently went for a walk.
Demographics: 44 years, Female, White / Caucasian. Physical description: 5 ft 4 in, 160 lbs, hair: Brown, eyes: Brown.
Clothing and accessories: Clothing: tan suede coat with green collar; Footwear: white tennis shoes with pink trim. Investigating agency: Placer County Sheriff's Office | 07-976 | 2007-01-20.
Timeline of Events
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2007-01-20
Mary Alice Helm goes missing
Ms. Helm was staying with friends in the Alta area, was home alone, and apparently went for a walk. She has not been seen since.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:January 20, 2007
Last Updated:June 19, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5308897800
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Case Information
Incident:January 20, 2007
Last Updated:June 19, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5308897800
You can remain anonymous