Drone footage shows moorland burning 'like something from Mars'.
A huge fire broke out at Rakes Moss, on the A628 Crowden to Glossop through the Woodhead Pass, just after 1pm on Thursday.
Firefighters have been battling the flames ever since.
The cause of the fire is not yet known.
Derbyshire Police's Drone Unit captured a view of the of the flames from above with a drone.
A tweet read: " Yesterday we were out assisting @manchesterfire and @DerbyshireFRS near to Chew Reservoir.
"The drone footage was used by commanders to see the extent of the spreading fires.
"Our thermal footage looks like something from Mars but clearly shows the fires burning well."
Derbsyhire Fire and Rescue Service (DFRS) chief officer Gavin Tomlins urged people to stay away from the moors.
He posted: "@DerbyshireFRS and @manchesterfire will be fighting this fire all tomorrow, moorland firefighting is dangerous and hard work, please help us by staying away from the moors due to this incident and the fire risk currently on them. Thanks."
Large plumes of smoke have been seen drifting over Greater Manchester.
Residents in Stalybridge have been advised to keep their windows and doors shut.
Others reported noticing 'a real strong smell of smoke'.
A statement tweeted by DFRS read: "Firefighters are currently on the scene at a moorland fire at Rakes Moss on the A628 Crowden to Glossop.
"Residents in the Stalybridge area are asked to keep their windows and doors closed due to smoke.
"Please avoid the area, adhering to Covid19 guidance."
