The search for a Washington State mom who disappeared near an Idaho river last year has ended in tragedy, with authorities identifying human remains found by a kayaker as the missing woman.

Chantal Williams, 24, was last seen walking near Marble Creek in the Gem State on Dec. 13 wearing a blanket, and was the subject of a search by local police — but was not found, People magazine reported.

The Spokane Medical Examiner has now confirmed that skeletal remains found by a kayaker in the St. Joe River on July 5 are those of Williams, a troubled mom from Deer Park, Washington, the outlet said.

Williams’ family told police she struggled with mental health illness.

Her brother, Dalton Williams, said his sister’s car was found on St. Joe River Road, and said the missing woman was a single mom of two, according to a since-deleted gofundme page, People said.

The Shoshone County Sheriff’s Office. launched the search shortly after Williams was reported missing, with dive teams, canine units and drones combing the area.

“Unfortunately, at this time the Shoshone County Sheriff’s Office has exhausted all of their resources and the search has been called off,” the sheriff’s office said on Facebook on Dec. 18. “The Williams family has been notified and they took the time to express their gratitude and appreciation for all the help they received from so many agencies.”

According to the Shoshone News-Press, the kayaker first believed the bones spotted in a shallow pool on the river earlier this month were animal remains — until authorities arrived and found they were human.

“We’re awaiting the results from the Spokane Medical Examiner, who will call and communicate their office’s findings with our coroner,” Shoshone County Sheriff Shawn Wehr told the outlet after the grisly discovery. “We have informed the family of Ms. Williams of our recovery, but we have not confirmed an identification yet.

“No matter what the results are, we hope that by identifying the remains we can provide this person’s family with some closure,” Wehr said. 

Tragically, Williams’ family now has closure.