A BUILDING that stands as a monument to Bolton's proud cotton spinning past must not be allowed to lapse into ruin, say heritage campaigners.

Swan Lane Mill No 3, in Higher Swan Lane, Daubhill, has appeared on English Heritage's Buildings At Risk register for the seventh year running.

The Grade II* listed 1914 mill has been allowed to lapse into a "poor" state according the heritage watchdog.

Derek Mills, chairman of the Bolton Historic Building Committee, said: "It would be an absolute travesty if something as symbolic as that was to be lost for any reason."

The huge mill, built by architects Stott's of Oldham, once stood as the largest cotton spinning mill in the world and formed the hub of the booming industry in Bolton.

Although the building is still partly occupied by a handful of small firms, Mr Mills said fears remained over its long-term future.

"It's been at risk for so long and every now and again we put our heads together to think of something," he said.

"But it's such a massive building.

"It doesn't strike you as the sort of place that could be converted into flats because of its high ceilings and even its use as an industrial premises would be limited because of a lack of parking."

The mill boasts distinctive features including rows of elaborate terracotta swans along the side of roof.

Brian Tetlow, chairman of Bolton Civic Trust, added: "It would cost an enormous amount of money to start restoring something like the mill but at the moment you would hope that the owners are keeping it reasonably maintained."

Other local buildings on the register include Lower Chesham Hall in Bell Lane, Bury. Built in 1713, it is privately owned and has Grade II* status.

English Heritage says that while some repairs are being carried out to the building, general maintenance work is still needed.

The engine house and chimney at Leigh Spinners Mill, in Park Lane, Leigh, are also listed as needing attention.