
The midwinter midday shadow, stretching down the North facing slope.
The midwinter midday shadow, stretching down the North facing slope.
Datum stone 2 looking towards Maen Llia and Datum stone 1.
This is the view from the base of Datum stone 1 towards Maen Llia. As can be seen, the top of Maen Llia coincides with the horizon.
This can easily be verified on site with a small mirror placed against Datum stone 1 pointing towards Maen Llia.
This is another reason to link the positions of these two stones.
The view from the South showing the different slopes.
View from the West along the East/West level line between Maen Llia’s Southernmost corner and Datum stone 1.
View from Datum stone 1 looking East. The most Southerly corner of Maen Llia and the diagonal of Datum 1’s rectangular shape form a precise E/W alignment.
The base of Datum 1 and the same Southerly corner are also on the same level.
A continuation of this line further East finds Datum stone 3.
View from the East, showing Maen Llia on its platform. The solstice midday shadow length is a little less than 60 feet long today, when the stone was set up it would have been over 100 feet long.
The stone is shaped and set up like a horizontal sundial so it points to the North celestial pole.
The winter solstice shadow and its manipulation by the North facing slope of Maen Llia’s platform. Neolithic ingenuity.
Datum 1 stone straddling the boundary between the natural slope of the hill and the artificial platform.
Datum 2 is another stone that’s very similar in size shape and orientation to Datum 1, it sits in the background precisely true South of Datum 1, against the fence.
This is the view from the NW showing the extent of the artificial platform constructed to mount Maen Llia upon.
Datum 1 is a stone that marks the position where the platform meets the natural slope of the hill. There is 90ft between the two stones. The platform has a gradient of about 1 degree.
Recumbent stone row with at least 6 recumbents, aligned on Maen Llia.
RHYD UCHAF STONE ALIGNMENT
NPRN: 422033
Type: STONE ALIGNMENT
Grid Reference: SN 92450 19120
Local Authority: Powys
Community: Maescar
Details at Coflein
Joseph Proskauer, aka Cairnholy Joe, pointing out lighting effects from the midsummer sunrise. A quite unique and entertaining experience with a really nice guy. Recommended.
The stone couldn’t wait for midsummer this year. The Beltane sunset shadow, on its way to the stream.
First flash, sunrise on May 17th, “As seen from the site”
The view East from “the site”(not my garden)
There is a very good formula forAlt/Az calculations in the appendix of this book. Highly recommended reading.
The portal stones, looking towards the Camarthen fans.
A view from the south east, showing, with the help of a convenient shadow( I’ve got friends in high places) how flat the circle is, and also the difference in sizes of the “portal” stones and the much smaller circle stones, seen to right and left here(just)
The “working platform” with scale model in the approx. center. Maen Llia on skyline, looking north.
Noticed this while I was there this morning. In the mid distance is the stone row and it’s recumbent, and between it and me a line can be drawn through the northern edge of the Eastern circle and the southern edge of the Western circle. A tangent.
The addition was sat on top of the real circle stone. Why do people do this?
During a busy week for Maen Llia , it’s fence has gone , it’s Eastern face has been vandalised , and it’s guardian , an ancient creature known as the “Pwca”, begs forgiveness for taking a day off and allowing the stone to be desecrated ( apparently he went to the match to cheer on Wales , so he’s absolved, unlike England, who are stuffed )
Summer solstice sunset shadow , going down to the stream , for a drink .
Summer solstice sunset , or it would have been if the cloud hadn’t built up and spoilt the show . Apparently the central corridor of the monument , which points to Dinas head , also aligns with the sun setting over the sea beyond it , at the solstice , as you can almost see here .
The new notice board for Maen Llia , in response to last years smiley face !
Looking South, towards Fan Fawr. The cairn is about 3 o’clock here. Mostly intact, a fine cairn and surprisingly large too. Well worth a visit.
Thanks to Sweetcheat for jogging my memory about this one in his blog. Been meaning to come here for ages.
Winter sunset. Th only footprints here were mine and a fox.
The first sight of Drygarn Fawr from the South Western approach.
Looking N/E, towards the Eastern cairn, with Y Gamriw beyond.
Cairn 2, looking West, with cairn 1 on left, and in the distance,on right, Drygarn Fawr. On a good day you can see Preseli from here.
Looking East, towards Y Gamriw and it’s cairns on the left, and Drum Ddu , with more cairns and a stone row, on the right.
The SW cairn, looking North East, towards cairn 2
The SW cairn, looking South West, with recumbent beyond.
The recumbent, looking North East, with two of the three Gorllwyn cairns beyond. There is another smaller cairn over the brow, a few hundred yards further on.
excellent panoramic views, on a clear day.