Police on Thursday concluded a two-day search for Ruth Ridley, examining Neils Reserve east of Walwa and a pine plantation near Shelley where her husband Gary's body was found last November.

Detective Andrew Leonard said it was always going to be a challenge.

Mr Ridley is believed to have driven to Tumbarumba after killing his wife at the camping area, and was found 35 kilometres south of Walwa, leaving a massive search area.

"It's disappointing but we knew we had to give it our best shot," he said.

"We searched for some time and weren't successful."

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Further searches aren't planned but the case is open, with police still seeking campers who stayed near the pair on October 26 last year.

They have spoken to a Wodonga man staying near the pair but others who were in the area haven't come forward.