A rough area of flat boggy ground, heather and tussocks with cotton grass as a warning of conditions underfoot. It's clear from the GPS location here that your photographer has wandered off the 'path' in a fruitless attempt to find easier ground.
Uploaded to Geograph by Jim Barton on 13 June 2013
Photo © Jim Barton, 13 June 2013. Licensed for reuse under this Creative Commons licence