Investigators and volunteer search teams over the weekend revisited the location where the remains of Lindsey Baum were found. She went missing in 2009 at the age of 10 in McCleary, and her remains were found last fall by hunters near Manastash about 20 miles west of Ellensburg in Kittitas County.

Search efforts over the past two weekends have drawn nearly 200 volunteers and law enforcement officials and 22 K9 teams from across the region, according to a statement released Sunday by the Kittitas County Sheriff’s Office. The search is believed to be one of the largest in state history, based on the number of personnel involved.

The search area covers approximately two square miles and is located roughly 20 miles west of Ellensburg, and is described as steep and heavily timbered with large cliffs and deep ravines.

Parts of the Manastash recreation area were closed through the weekend due to the search.

“The preservation and discovery of evidence is of utmost importance in this case to increase the opportunity for a successful conclusion,” Kittitas Undersheriff Clay Myers said.

Grays Harbor County Sheriff Rick Scott and the FBI continue to lead the investigation into Baum’s disappearance. As of last week, Scott said Baum’s remains are still in the custody of the FBI and there’s more testing to be done.

Anyone with information regarding this case is encouraged to call the tip line at 360-964-1799, or email baumtips@co.grays-harbor.wa.us.