The elderly father of teenager missing nearly three decades watched Maine State cops Sunday excavate portions of a wooded property for clues in his daughter’s cold-case disappearance.

Kimberly Moreau vanished May 10, 1986, the day before her high school junior prom. Cops obtained a warrant Thursday to search the 5-acre property of a man who authorities say was one of the last people to see her before she disappeared.

The Portland Press Herald said the search of the property in Canton was in its fourth day Sunday. The paper said Richard Moreau, 73, has been at the site each day, watching from a roadside vantage point as police evidence teams with rakes and shovels enter and exit the property. He is hoping for any kind of closure in his daughter’s disappearance.

“There’s a lot going on right now,” Moreau told the paper. “There’s excavators, heavy equipment, people with hand tools. I am hoping and praying to God this all ends soon.”

Kimberly had gone out with a girlfriend, now dead. She was 17. They met a pair of 25-year-old acquaintances. She was last seen getting into a white Pontiac Trans Am with at least one of the two men at 11 p.m. Police suspect foul play.

The property being searched belongs to one of the two men, Brian Enman. He told police he dropped Kimberly off a half-mile from her home at her request. The Press Herald said police have never named him a suspect in the case.

Cops haven’t disclosed what new information led them to obtain the search warrant, the paper said. She was declared dead in 1993.

Enman told the paper Friday that he understood police needed to do their job. He maintained he had nothing to do with the girl’s disappearance.

Over the years, Moreau put up thousands of flyers all over western Maine appealing for help in bringing his daughter home.

He said finding Kimberly is more important than finding the culprit or culprits responsible for her disappearance.

“I got to the point where the only important thing, the only thing that mattered, was finding her,” he told the Press Herald. “If someone is charged with her death, I don’t want to go to a trial and relive it. I just want it to end.”