New footage shows the challenge faced over the last 24 hours by firefighters up in Winter Hill.
Taken by the Lancashire Fire and Rescue Service the film also includes close up footage showing the firefighters at work.
Update: Winter Hill fire now declared a major incident
Beating back the flames in the peat more than 80 firefighters at a time have been working to try and stop the fire spreading.
It began around 3.30pm on Thursday (28 June) and was looking as though it was close to coming under control.
Until around 4.30pm on Friday (29 June) when the fire reignited and more locations on the moor caught fire.
The video also shows the helicopter support being received on the moors, with the helicopter dumping water on the fire.
The fire, near Rivington Pike, is expected to burn for days with no rain forecast until mid-July in Preston and Lancashire.
United Utilities are appealing for households in the North West to limit their water usage due to the amount of water needed to fight the moorland fires.
Read more: Aerial pictures show the scale of fire on Winter Hill
There were 18 fire crews on the moors throughout Friday evening and this is being reduced overnight.
Fire crews are keeping a watching brief and if the fire begins to spread rapidly more crews will be called out.
The public have been thanked for their donations to the firefighters, with water bottles, sports drinks and food also dropped off at the fire service training centre in Southport Road, Euxton, Chorley.
Thank you to Tesco stores in and around the Adlington area, Marks and Spencer Horwich, Greenhalgh Craft Bakers, Winter Hey Lane Taxis and Home Bakery to name a few who have sent donations over. Apologies to all the people and companies we haven’t mentioned. ❤️ #winterhillfire pic.twitter.com/PAufHFlxMi
— Lancashire Fire & Rescue Service (@LancashireFRS) June 29, 2018
Chorley Council have appealed for people to stay away from Rivington while the fire is tackled.
An investigation into the cause of the fire has yet to establish one, however on Friday lunchtime police announced a 22-year-old man had been arrested on suspicion of arson with intent to endanger life.