Many residents of Mianyang lost relatives and homes to the Chinese earthquake. But now they live in fear of another natural disaster: the threat of wide-scale flooding. The BBC's James Reynolds travelled to the central Chinese region to find a population on the move.
Quake lakes threaten Sichuan survivors
In Mianyang, you grab whatever you can, and you head to higher ground.
On a muddy hilltop above the city, a policeman tells people to get moving and keep the road clear.
Every few minutes more people come up. One man walks up the hill carrying a kettle and an umbrella.
A woman behind him carries a shovel. Others carry clothes and blankets.
Thousands of people now live in this evacuation camp.
Some have set up stalls selling instant noodles - there's even a makeshift police station inside a huge green tent.
Everyone here survived the earthquake, and they don't want to get caught in a flood.
Running for their lives
From this hilltop camp they can all look down and see the city of Mianyang below them.
Throughout the day it's been difficult and sometimes pretty confusing to work out the exact scale of the evacuation
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