Here is the map of the Rudston area made at around 1840. I have highlighted the various earthworks in red. These long banks fo earth erected in prehistoric times are known as cursuses (singular: cursus). The antiquarians of a couple of centuries ago fancied them as race tracks, no doubt influenced by classical educations where the greeeks would hold games invoving races for special occassions.
The truth is that cursuses remain one of the most mysterious of prehistoric remains. Even stone circles have had some light shed on them in terms of their relationship to burials, rituals and observing the movement of heavenly bodies. These long bamks of earth however are still an enigma. Any thought that they may be associated with ley lines or even with observing the sun or moon seem unjustifiable as no known cursus anywhere in the country is straight. They are all quite perceptibly crooked.
The strange earthwork marked in the centre of the map near Tuft Hill, is the termination of a long cursus which follows, and crosses the modern road up toward Rudston. It can be barely made out from the field if you park by the side of the road and stare hard. There is an excellent aerial photograph of that cursus in "Bronze Age Britain" by Michael Parker Pearson (an excellent book for an oversight of neolithioc and bronze age life).