From the path the ring of Y holes can be seen coming from the north to pass under neath the path, in the photo above the nearest light spot is one of the ring. The lighter patch nearer the stones is one of the ring of Z holes, halfway between them there is a ring of faint marks some of which may be another ring of unexcavated holes (kindly referred to by some as Daw Holes)
Between the solitary Stone 16 and the nearer trilithon of stones 21 and 22 there are four light parch marks which indicate where stones 17-20 may have stood. For more about these see :
and Parchmarks at Stonehenge, July 2013Simon Banton, Mark Bowden, Tim Daw, Damian Grady and Sharon Soutar
https://doi.org/10.1017/S0003598X00050651 Published online: 26 August 2014
Halfway between the Z and Y holes there is a shallow a 10cm high bank which is where the "Daw holes" may be as seen in the recorded parchmarks.
Beyond the Aubrey Holes (originally called the X holes) on the inner side of the bank Simon Banton and I think there are regular slight depressions which parch, maybe the holes that Aubrey actually saw.
The Z holes close to the stones show well as do those that show where excavations, propping poles and supporting concrete have disturbed the ground.
Click pictures to enlarge.