BISMARCK, N.D. (AP) — Volunteers searching for a missing New Town woman plan to camp on powwow grounds of the Fort Berthold Indian Reservation for about a month.

Thirty-two-year-old Olivia Lone Bear was last seen leaving a New Town restaurant Oct. 24. Searches by authorities and volunteers for the mother of five have continued regularly since then.

Brother Matthew Lone Bear tells The Bismarck Tribune that a volunteer search party will camp from May 21 to June 22 at the Four Bears Park, White Shield and Mandaree powwow grounds. He says the goal is to expedite the search and reduce costs including fuel and lodging.

Three Affiliated Tribes Police Capt. Grace Her Many Horses says authorities also are continuing their efforts, with aerial searches planned soon.

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Information from: Bismarck Tribune, http://www.bismarcktribune.com