From This is Lancashire, 14 September 2009:
'A massive rave in a quiet beauty spot was broken up by police officers after it attracted hundreds of youngsters through the internet. More than 400 people attended the illegal, open-air rave at Rivington, near Horwich, in the early hours of yesterday. Officers were first alerted to the gathering at Liverpool Castle, at Rivington Reservoir, shortly after midnight, following complaints from residents living more than half a mile away that music could be heard.
A number of vans with industrial speakers inside were being used to pump out loud music at the castle until 7am.
More than 40 police were sent to disperse the crowds, thought to be youngsters in their late teens to early 20s, and the officers remained at the scene until about 9am.
...Insp Kevin Otter, of Lancashire Police, said it was the first event of its kind in the area that they had been called to deal with. He said... “This is a highly-unusual incident for the area, they happen more in the south of England. We did have one about 18 months ago, near Rawtenstall, but there were only about 50 people. He added: “Although this was obviously a very well organised event, it was an illegal gathering and those who attended were trespassing.”
The event was described on the Facebook site as “the first but hopefully never the last rave that was at Rivington Lower Castle”. Last night, a member of the group posted on the internet: “Really enjoyed the music, people raving dancing, juggling fire, everybody was shaking hands even though we didn’t know each other. People came from all over Manchester, Bolton, Horwich, Lancashire and Yorkshire.”
Some footage follows from Conan2472 at youtube where comments included: 'we got there before the coppers had blocked the road off, if it weren't for that helicopter we wouldn't have found it. heard loads about people duckin thru bushes swamps..walls, barbed wire ahaha. worth it tho!' Apparently Manchester's Daylite Robbery Sound System were involved