The family of Bristol landscape architect Joanna Yeates has visited the scene where her body was found.
The 25-year-old's snow-covered body was discovered by a couple out walking their dogs in Longwood Lane, Failand, on Christmas Day.
Miss Yeates, from Clifton, had not been seen since she was filmed on CCTV at a Tesco store on 17 December.
Police said the death was being treated as suspicious. The family have formally identified her body.
Miss Yeates' parents, David and Teresa, her brother Chris, and her boyfriend Greg Reardon visited the scene near Long Ashton Golf Club and laid flowers.
A post-mortem examination began on Sunday, but Avon and Somerset Police warned the process could be lengthy "because of the extreme freezing conditions in which Joanna's body was found".
Results of the tests are expected to be released on Tuesday.
It is hoped the post-mortem results will help investigators narrow down the period when Miss Yeates died, enabling them to intensively trawl CCTV for clues.
Cameras recording movements across Clifton Suspension Bridge - which links the area where the body was found, with Miss Yeates' flat - are already being studied.
Police have appealed for information which may help them fill in the gap between Miss Yeates' disappearance and the discovery of her body.
She is thought to have returned to the flat she shared with Mr Reardon, 27, on the evening of 17 December.
Her keys, mobile phone, purse and coat had been left behind at their flat.
Forensic examiners said there was no sign of a forced entry or a struggle at the flat.
Mr Reardon was in Sheffield visiting family for the weekend and reported her missing to police when he returned home two days later.
Ch Supt Jon Stratford, of Avon and Somerset Police, said: "We have not stopped working hard throughout the Christmas period to find their daughter after she was reported missing.
"Now we will work just as hard to discover exactly what happened to her and how she came to be in Longwood Lane on Christmas morning.
"I would appeal to anyone with any information whatsoever that can help this investigation to please come forward and help us provide Joanna's parents with the answers they so desperately want and need."
Police said she had been to the Bristol Ram pub in Bristol's Park Street the night she disappeared, but left there at about 2000 GMT.
CCTV images showed Miss Yeates visiting a Waitrose store on The Triangle and then the Tesco Express store, where she bought a pizza.
A receipt for the food was found at her address, but no trace has been found of the pizza or its wrapping and detectives believe its whereabouts could hold a vital clue in the case.
Officers are also keen to hear from people who may have seen anything or anyone acting suspiciously over the past week in the Longwood Lane area.
The Reverend Peter Gilks, the priest in charge of St Mark's in Ampfield, Hampshire, Miss Yeates' home parish said: "In our services... we've been remembering the family in our prayers and we all feel for them just so much."