One of the old S²E² or Woolley Mammoth I caches that is now a link between the Woolley Mammoth and a smaller loop.
Please do not park on this track. It is a private road and the land owner does not like it. Please park slightly nearer to Grafham where the Woolley Mammoth II loop crosses the road.
If this seems familiar it used to be GC43CT4 - S²E² Back to Base