This whole area is very confusing... and the OS map don't help much either. I have come home and read through a couple of books and I am still not exactly sure which stones are which.
Looking at Pure Joys postings I am even more confused...
There are several groups of stones dotted around the downs, many more cairns/barrows than are marked on the OS map and although I found two parts of the stone row I am still not sure what the line is that runs between them on the OS map?
This was obviously an important area in the past, with the Colvanick Stone Row just across the A30 and the Stipple Stones and Trippet Stones within walking distance to the north west.
Sadly it is all a bit confusing now and it takes quite a bit of walking around to find everything.
As for parking, turn off the A30 and take the road to St Breward. There are several places you can park beside the road before you reach the Trippet Stones. Then it is just a case of heading west up on to the downs.
These downs are one of the brilliant complexes that you get in Cornwall, like at Leskernick where you have standing stones, settings, a row, cairns, barrows, etc all in one relatively compact area.
A handy place to park is in an off road picnicy area where the lane from Temple hits the thunderous A30 (circa SX132726). This has a few picnic tables, a mobile café, and even a portaloo! Heading eastbound on the A30 this is signposted 'Temple Fishery' and 'Temple'. Alternatively there is a layby on the eastbound side of the A30 at SX124723. Technically there are very few public footpaths in the area (and the ones there are, are not obvious paths on the ground), but Downs like these are rarely visited by anyone or anything and as long as you use the normal common sense country code I don't imagine anyone challenging you (don't quote me though as some sort of magic access key!).
I actually accessed the Downs after visiting Colvannick Tor Stone Row so directions on that page suggest one way onto the downs.
Set slightly higher up the hill from the stone rows, this is the biggest upright on the downs. The higher upright (of the group of three) can be seen on the ridge to the SE.
The reason why it is hard to find the settings on the downs is partly because of the gorse bushes. Although they do not cover the area they do have a habit of hiding things when looking from one point to another.
The stone row is split into two sections. Both lie on the northern side of the downs and are not easy to find. None of the stones are more than about a foot high. The western row has I think 7 or 8 stones then there is a bog gap to the eastern row which has about the same number. At the far eastern end of the eastern row is a stone about three foot long but now lying in the grass. A grass covered mound beside it is possibly a buried stone..there ia definatly something hard beneath the grass.