Mr Colaco was believed to be heading for the summit of Tryfan
Police have renewed their appeal for sightings of a hillwalker who has not been seen for five days.
Shayne Colaco, aged 32, of Stoke-on-Trent, is believed to have set off on his own on a route up Tryfan in Snowdonia after leaving his Fiat Seicento car at Ogwen Cottage campsite.
Police said it is possible he has been injured and cannot raise the alarm.
Mountain rescuers and Sea King helicopter crews from RAF Valley mounted a major search for the walker after he was reported missing on Monday. Handlers and dogs from the Search and Rescue Dogs Association North Wales also joined the hunt for Mr Colaco.
Ogwen Valley Mountain Rescue Organisation and RAF Valley Mountain Rescue Team have scoured the mountain of the area for the experienced walker, without success.
A North Wales Police spokesperson said: “It would appear that Shayne has been walking in the western area of Ogwen Valley.
“There are two areas in which the search is currently being focused. The first area covers Pen Yr Ole Wen north of the A5, Yr Garn and Foel-goch, south and west of Ogwen.
“The second area of interest is a walk from Llyn Ogwen up Tryfan to Adam and Eve. The return journey would be Cwm Bochlwyd, via Llyn Bochlwyd; along the A5 to Capel Curig.”
Staffordshire Police are leading the investigation to find Mr Colaco. Efforts to trace Shayne are continuing and officers from both Staffordshire and North Wales Police forces will continue to pursue lines of inquiry, a spokesperson said.
The senior investigating officer, Detective Inspector Steve Morrey from Staffordshire Police said: “I am appealing to anyone who may have seen Shayne, or been in contact with him recently, to get in touch.
“We believe that he has been walking in a popular area and are hoping that someone has seen or spoken to him.
“We urge anyone that is walking in the location where we believe Shayne has gone missing to please look out for him. It may be that he has been injured and cannot raise the alarm.”
The missing man is described as an experienced hillwalker and is of Asian appearance with a very thin build and a bald or shaved head.
He is thought to have been wearing clothes similar to those he is pictured in: a dark blue The North Face walking jacket, grey and navy Bear Grylls walking trousers and walking boots or shoes.
DI Morrey said: “We will continue to liaise with our colleagues at North Wales Police and are supporting Shayne’s family and friends at this time.”
Anyone with information on Mr Colaco’s whereabouts is asked to contact North Wales Police on 101 or Staffordshire Police on 101 quoting incident number 680 of 6 August.
