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WOODLAND PARK, Colo. – The search intensifies for a missing Colorado mother who has not been seen since Thanksgiving.

Woodland Park Police said the young mother was last seen publicly on surveillance cameras shopping at the Safeway in Woodland Park with her daughter on Thanksgiving. Officers said she later exchanged her daughter with her fiance. But ten days passed before Kelsey Berreth was reported missing.

“Kelsey we just want you home. Call us if you can. Someone knows where she’s at,” Kelsey’s mother, Cheryl Berreth said in a news conference on Monday afternoon.

A mother’s desperate plea after her 29-year-old daughter disappeared.

“She’s not the kind that runs off. This is completely out of character,” Berreth said. “Kelsey loves her God. She loves her family and friends and she loves her job. She’s reliable, considerate and honest.”

Berreth is an aviation instructor at Doss Aviation in Pueblo and a mother to a one-year old girl. She was last seen on November 22nd. Three days later, police say her cell phone pinged nearly 800 miles away.

“Kelsey’s phone gave a location near Gooding, Idaho on November 25th at 5:13pm,” Woodland Park Police Chief, Miles De Young said.

At that same time, investigators say her employer received a text from Kelsey’s phone stating she would not be into work the following week. Police say Kelsey’s fiancé, Patrick Frasee, is being cooperative. He told police the last text he received from her phone was on November 25th. He told officers he had not seen her since Thanksgiving when he met to exchange their daughter.

Police said Kelsey’s mother reported her missing on December 2nd. All of her belonging were still inside her home, except for her purse. We asked why Patrick did not call police.

“At this point he is the father of Kelsey’s daughter and we’re going to leave it at that. This is a missing persons case,” Chief De Young said.

Mounting concern filters through the small town.

“What happened to her? Because someone with small children, and I have small children myself, you just don’t up and leave,” Woodland Park resident, Melissa Cothran said.

Kelsey’s family is determined to bring her home safe.

“We won’t quit looking,” Berreth said.

Police said the one-year-old is currently with Frasee. Police said both Berreth’s cars are still in Colorado.

If you have any information on where Kelsey may be – you’re urged to call this Tip Line to report information: 719-687-9262.