Sun Valley City Councilwoman Ann Agnew was diagnosed with throat cancer in mid-December and is preparing to undergo nine weeks of treatment at the University of Washington in Seattle.
Sun Valley Mayor Jon Thorson said Agnew will be missed during her absence.
"I love working with her. She is a fine, gentle woman. We are anxious to get her back," Thorson said.
Agnew works as a Ketchum-based architect with Boss and Agnew Architects. In September 2005, she lost her husband, Jim Agnew, to pancreatic cancer.
Voters re-elected Agnew in November 2005 to serve a second term on the council. A month after the election, Agnew learned she had a tumor located at the base of her tongue.
Agnew plans to return to Sun Valley in late March following the intense treatment. She chose radiation and chemotherapy treatments, rather than surgery.
As Agnew undergoes treatment, the city will continue to move forward with municipal business, Thorson said.
"We will have a quorum (at City Council meetings). We will keep her up to speed. We will keep in contact by phone and e-mail," he said.
Thorson said the city will keep the councilwoman well informed of issues she holds dear. She plans to join council meetings by phone. Idaho code permits council members to take part in meetings via conference calls.