Missing hiker found alive after going missing for almost a week in NSW bush

A woman has been found "alive and well" after she went missing last week in dense NSW bushlands.

Marissa Gee, 33, was found at Mt Wilson in the Blue Mountains at 2.30pm today, nearly a week after she went missing while on a hike in the dense bushlands.

Gee was spotted in the bushlands by a Rural Fire Service helicopter, where she was winced to safety by a rescue helicopter.

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She was found alive with minor injuries and suffering from dehydration.

She has been airlifted to Nepean Hospital for treatment with NSW Police saying she was "alive and well" with just "scrapes and bruises."

Inspector Dave Graham from the NSW Blue Mountains area command said Gee had become "lost" and "disoriented" in the bushlands.

"At the moment we are running on the view that she was lost... she survived by accessing water sources," Graham said.

"At this stage she is very grateful for what's transpired... for the rescue and the efforts of the volunteers here."

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Graham said that Gee had been wandering in the bushland during the major search operation, and crews were "confident" that she came as close as 250 metres from rescue teams over the six days she was missing.

"She was found approximately 800m to 1000m from her last known position... she was about 400m from a fire trail," Graham said.

More than 50 volunteers from SES, the Rural Fire Service and NSW Police were out looking for Gee daily since she went missing.

She was first reported missing from Katoomba on Friday, December 13, when she could not be contacted.

Search crews located her car on Galwey Lane at Mt Wilson at midday on December 14.

Her tent had also been located by search crews earlier this week, but there was no sign of the hiker.