It is still unclear why a peat bog in Borth, near Aberystwyth, caught fire.
According to a scientist from Bangor University peat burns well because it's made of rotting plants.
He added that it is unusual to see such a fire at this time of year.
Dr Christian Dunn said: "It may be that the area of peatland has drainage channels cut into it and the strong winds have helped dry off the top layer.
"There’s no way of knowing at the moment though how it started, it could have even been from a lightning strike during the storms or perhaps the elusive will-o’-the-wisp."
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