Lost WA prospector found

A prospector who was reported missing on Sunday afternoon has been found in a mine shaft.

The 63-year-old and his son had been prospecting about 20km west of the Thunderbox gold mine in Leonora, which was mothballed by Russia's Norilsk Nickel in 2007.

The man endured a night in remote bushland in Western Australia by sheltering in an abandoned mine shaft, ninemsn.com.au reported.

He was reported missing to police after he failed to return from a walk.

Wearing just shorts and a t-shirt, he did not have any food or water.

He was found safe and healthy on Monday morning.

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