Northern Territory Police are continuing to seek public assistance to locate .
Investigators have received witness reports that Mr Johnson reached the summit of Mt Gillen at 8:30am on Sunday 4 December 2022.
It is believed Mr Johnson was walking in a westerly direction towards Honeymoon Gap.
Air and ground search capability have been deployed to the surrounding areas to assist with the search.
Sergeant Philip Emmett said “We are urging anyone with information to contact police on 131 444. Please quote reference number 10193177.”
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