207 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Mark Engelhart
Missing

Case Description

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Mark Delmar Engelhart, age 47, went missing on July 24, 2003, from Hermiston, Oregon. At the time of his disappearance, Engelhart, who owned a landscaping business, was going through a divorce and staying at a friend's house. On the day he vanished, he was expected to visit his ranch to care for his animals and attend his parents' anniversary party, but he never showed up. His black Chevrolet S10 truck, along with personal belongings, also disappeared.

After an investigation, suspicion ...Read More
Last Seen: Jul 24, 2003

Links to Additional Sources (8)

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Missing Person / NamUs #MP113480 - Office of Justice Programs

Judge sentences Flaiz to life in state hospital - East Oregonian

...View 6 additional sources

Victim Details

created

Dec 21, 2023

Case Added

Apr 16, 2024

firstname

Mark

lastname

Engelhart

Current Age

Age at Disappearance

Height

70 inches

Weight

160 lbs

ethnicity

White / Caucasian

gender

Male

Last Seen

Jul 24, 2003

City

Hermiston

State

Oregon

County

Umatilla County

Zip Code

97838

Tribal Land

vehicles

318

Agency ID

133233

Agency Name

Umatilla County Sheriff's Office

Agency City

Pendleton

Agency State

Oregon

Agency County

Umatilla County

Agency Zip Code

97801

Agency Contact

Agency Address

4700 N W Pioneer Pl, Oregon

Agency Phone

5419663600

Agency Jurisdiction

County

Agency Type

Law Enforcement

Agency Website

https://www.co.umatilla.or.us/sheriff/

Agency Case #

2003070083

Agency Report Date

2003-07-26

Primary Agency

Umatilla County Sheriff's Office

caseContributors

3553

Hair Color

Brown

Left Eye Color

Hazel

Right Eye Color

Hazel

solved

Last Updated

12/08/2025

Area Last Seen:

Forum Posts (2)

Has anyone else found it odd how no one in the neighborhood noticed anything suspicious happening at... ...Read More
07/28/2023

Has anyone else been following the Mark Delmar Engelhart case? One detail that really sticks out to ... ...Read More
03/15/2023

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