It is a sphagnum quaking bog with adjacent heather heathland.[2] The stream that runs axially through the bog drains at its eastern end into the infant Beaulieu River.
Biodiversity
It is notable for the presence of the rare antFormica candida, sometimes called the shining bog ant, which was discovered there in the early 20th century by Horace Donisthorpe. The wetter areas contain the large marsh grasshopper and the rare and diminutive bog orchid, Hammarbya paludosa.
