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MOUNTAIN CITY, Nev.-- Rescue teams on the ground and in the air are continuing the search in the northeastern Nevada backcountry for a Canadian man who became stranded with his wife seven weeks ago.

Sgt. Kevin McKinney of the Elko County Sheriff's Office says about 20 searchers on horseback and all-terrain vehicles are scouring a network of dirt roads for 59-year-old Albert Chretien. McKinney says at least one airplane is flying over the area.

Chretien and his wife, Rita, became stranded in late March after getting stuck on a muddy road in the Humboldt-Toiyabe National Forest en route to Las Vegas. Albert Chretien set out on foot three days later and hasn't been seen since.

Rita Chretien was rescued Friday by hunters. She spent four days recovering in an Idaho hospital before returning Tuesday to her home in British Columbia.

After spending seven weeks in the couple's van stuck in mud, surviving off trail mix, hard candy and water from a nearby stream.

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