in addition to the scrub clearance 6 heavy duty bags of litter were filled, this is not a large field by western heights standards and is not a cut through to anywhere else.
there is a large litter bin in the car park that is regularly emptied and i have never seen people drop litter during the daytime.
the rubbish must come from nocturnal visitors, what anyone would be doing up there at night is a mystery to me.