 Much peat has been removed from the site over the years but peat-cutting has now stopped, and the bog is being allowed to regenerate.Underlying the peat are moraines of sand and gravel, which rise to the surface in one place, forming Lindholme Island.This is the site of a late neolithic timber trackway discovered in 2004, about long, with rails about apart, extending from dry land across a shallow pool to a wooden platform.