Mark Walters @MarkWalters_ Twitter profile

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Mark Walters

@MarkWalters_

3 months

Popped out to this late 18th/early 19th century farmhouse with the conservation officer today near Trewern, Powys. Built of hand made brick made from clay in the fields at the back ‘brick field’. They want to demolish it. It was a time capsule inside 🙂

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Mark Walters

@MarkWalters_

6 years

Its not every day you see a whole Roman fort (minus the bit covered by a medieval church) appear as parch marks in the grass. This is Caerhun on the River Conwy, Gwynedd this morning. The external vicus settlement to the N and the bath house near the river also very detailed.

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Mark Walters

@MarkWalters_

1 year

Lidar of the palace of the Roman emperor Galerius (305-311 AD) in Gamzigrad, Serbia via GeoGIS Consultants. The wider view captures the mausoleum tombs of Galerius & his mother on the hill to the east. More Serbian lidar archaeology captured by GeoGIS here

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Mark Walters

@MarkWalters_

2 years

Looking forward to finding out whether this is a Roman fort, or something else, in the Forest of Dean in 2022. Everything went on hold in 2020. Early Roman denarii & pottery finds from fieldwalking by the Dean Archaeological Group tend to support the Roman fort ID.

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Mark Walters

@MarkWalters_

1 year

Fabulous bit of preserved late medieval ridge and furrow field system near Willoughby on the Wolds, Nottinghamshire. The landscape looks like it has been combed through 😍 #lidar

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Mark Walters

@MarkWalters_

3 months

@alfiescruff We have objected and will ask Cadw to assess for listing.

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Mark Walters

@MarkWalters_

6 years

Fun exploring the Neolithic passage tombs of the Carrowkeel cemetery in the Bricklieve Mountains, Sligo. Well preserved tombs with side chambers and an amazing prehistoric landscape

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Mark Walters

@MarkWalters_

4 years

Some of these Don’t Visit Wales (during the lockdown) digital versions of old tourism posters are quite clever..

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Mark Walters

@MarkWalters_

2 months

Always good fun revealing a hillfort hidden by trees with #lidar This is Great House Camp, near Llangwm, Monmouthshire with an impressive set of four encircling banks and ditches. Data via @natlibscotmaps

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Mark Walters

@MarkWalters_

6 years

Drone views of the internal parch marks of buildings at Brecon Gaer Roman Fort last week revealed during the recent dry spell. The principia, praetorium, barracks, granary and bath house (apse) can be seen. Garrisoned from 75AD by Spanish cavalry then 2nd Legion in 2nd c. AD

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Mark Walters

@MarkWalters_

3 years

Pentre Ifan neolithic burial chamber, near Nevern, Pembrokeshire. I've visited a couple of times before in bad weather so it was good to catch it in the sunshine today. Always impressive in this landscape with Carn Ingli in the background and wide views out to the coast.

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Mark Walters

@MarkWalters_

1 month

A fine example showing how archaeological earthworks are progressively obliterated from the landscape surface by agricultural ploughing. Clockwise from top right we have well-preserved (in woodland), partly ploughed out, then totally erased. Gaer Hill, near St. Arvans, S. Wales

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Mark Walters

@MarkWalters_

2 years

Managed to find a decent overlay image for the Pompeii 1 metre lidar data. Makes a pretty nice 3D model of the town showing the overall layout and unexcavated areas #lidar

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Mark Walters

@MarkWalters_

5 months

Iron Age hut circle heaven 😍 This settlement at Ty Mawr near South Stack on Holyhead Mountain was occupied into the 6th c CE. Originally there were at least 50 huts within a field system but only 20 have survived. There are rectangular storage huts too & some internal features

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Mark Walters

@MarkWalters_

11 days

If you tilted your head back and looked directly overhead you got this lovely Sci-fi starburst effect from the #aurora as if everything was radiating out from one point - very trippy🙂

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Mark Walters

@MarkWalters_

22 days

Had a look at the #lidar around Michaelchurch on Arrow, Powys due to all the Welsh Gaer (fort) placenames near the village. That looks pretty convincing as a large Roman campaign camp with perhaps a later smaller fort inside it doesn’t it 🤔😲

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Mark Walters

@MarkWalters_

6 years

Nothing quite prepares you for the first distant view of the Bryn Cader Faner Bronze Age cairn circle on the edge of the Rhinog mountain range in Snowdonia and then suddenly you are right there with it looking out over the most amazing views - quite stunning !

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Mark Walters

@MarkWalters_

2 years

Salt Warehouse - Montgomeryshire Canal

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Mark Walters

@MarkWalters_

6 years

Can't say too much about this one yet - a fort which has never revealed its interior plan or external settlement in Wales just 'popped' over the last week with parch marks. Seen by the Royal Commision on a recon flight & I followed up with photogrammetry - part of the vicus...

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Mark Walters

@MarkWalters_

5 years

LiDAR Look-around video of Melandra Castle Roman Fort (Ardotalia) near Glossop, Derbyshire. Founded 78 AD in timber, rebuilt 108 AD in stone & abandoned c. 140-150 AD. Garrison of 500 Frisian auxiliaries from Holland/Germany & then Bracara Augustani from Portugal #lunchtimelidar

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Mark Walters

@MarkWalters_

5 years

Messing about with some 1 metre resoution #Mars elevation data from @HiRISE in #Aerialod by @ephtracy Ganges Chasma eroded peaks in a dust storm, Meroe Patera dunes and the Ismenius Cavus impact crater

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Mark Walters

@MarkWalters_

1 month

Superb 3D GIS project mapping the fortified city of Livorno in Italy as it was in 1646 and combining this with a 1646 census of the population so that you can click on buildings and bring up a linked database entry on the occupants - clever stuff from @DECIMAUoT 👍🏻

DECIMA

@DECIMAUoT

2 months

We have an exciting announcement here at DECIMA, the launch of Livorno3D - the newest stage in our digital mapping work! 1/6

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Mark Walters

@MarkWalters_

3 years

#Aerialod works very well with 50cm .asc format lidar, way better results than with the more recent 32 bit tiffs for some reason. This is Vindolanda Roman fort to the south of Hadrians Wall on the earlier Stanegate road and frontier line #FridayLiDAR

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Mark Walters

@MarkWalters_

1 year

Really good parch marks of the whole of Wroxeter Roman City on the Bing aerial imagery right now. I don't think I have seen it this good. All of the city defences, internal roads & numerous buildings to individual room level detail if you zoom in

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Mark Walters

@MarkWalters_

3 years

Presumably a remnant of the days before archaeological management of earthworks on military ranges was more integrated - someone had fun bouncing their tank right over the top of these well preserved prehistoric burial mounds on Snail Down, Wiltshire 🙄 #lidar

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Mark Walters

@MarkWalters_

6 years

#LiDAR look around of the #Viking royal monuments at Jelling, #Denmark The mounds were erected by Harald Bluetooth in the late 10th c. AD to commemmorate his father , King Gorm, & mother Thyrve. The mounds overlie a large stone setting in the shape of a boat #UNESCO #FridayLiDAR

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Mark Walters

@MarkWalters_

5 years

We were out finishing a drone survey in Snowdonia on Christmas Eve due to a lucky break in the weather. Put together a quick video flypast of Bryn y Castell hillfort nr Ffestiniog 3rd c BC - 1st c AD. Sarn Helen Roman road is the rutted track below enclosure. Bog is iron source

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Mark Walters

@MarkWalters_

4 years

Quite by chance I caught some cooling towers in the Polish lidar point cloud I was processing which look great. The plume of water vapor leaving one of the towers was so saturated that the laser saw it as a surface and bounced off it, thus revealing the plume as noise data😀

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Mark Walters

@MarkWalters_

1 year

Had a query in work about a Castell placename for a farm in Denbighshire, but there is nothing obvious on the HER, or old mapping. Looked on the new 1m Welsh lidar & found a new large prehistoric enclosure 700m away, which is almost certainly the origin. Nice when that happens🙂

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Mark Walters

@MarkWalters_

3 years

Passed through the remains of Roman London on an in-game excursion to the south in #AssassinsCreedValhalla They don’t want to let you into the temple of Mithras if you get there too early in the gameplay do they 🙂

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Mark Walters

@MarkWalters_

6 years

Probably the most detailed view you will ever see of a proembolion or upper ram in position on an ancient warship. This is the naval monument known as the Cyrene Prow, Libya. The upper ram is unusually long in this case & the exact function of these upper rams is still debated

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Mark Walters

@MarkWalters_

4 years

Spotted by my wife on Bing Aerial - a nice cropmark of the Varchoel Late Iron Age enclosure near Arddleen, Powys just down the road form us. Great detail on the entrance trackway and ditches and a later boundary ditch that crosses through the enclosure

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Mark Walters

@MarkWalters_

1 year

I never realised that Thetford's 12th c. motte and bailey castle lies within an Iron Age hillfort ! The motte mound is apparently the second largest in England and the castle was disused after it was destroyed by Henry II in 1173 during a revolt led by his sons and wife #lidar

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Mark Walters

@MarkWalters_

6 years

A pleasure working with the Twmbarlwm Society on the weekend doing some drone survey, photography & video of the hillfort & motte for outreach & education materials. You can view the annotated 3D model here

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Mark Walters

@MarkWalters_

6 years

On the way back over the mountains from a #drone #photogrammetry job and stopped in at Tomen y Mur #Roman Fort & Motte & Bailey nr Trawsfynydd for some quality time in the sunshine. Lovely quality of light today. Great that there are no flying restrictions here now.

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Mark Walters

@MarkWalters_

6 years

The Kanna Hogar Late Iron Age and Viking burial ground in Smaland, Sweden. A mix of circular mounds, oval mounds (usually female burials) and even a couple of tri-radial/tricorn cairns #LiDAR

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Mark Walters

@MarkWalters_

3 years

The internal features of the Roman fort layout at Caerhun, Conwy Valley, North Wales revealed by parch marks during my drone survey in July 2018. The external settlement (vicus), road and bath house also showed up well #RomanFortThursday

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Mark Walters

@MarkWalters_

5 years

Some rare evidence of Roman mining is excavated at a fort site in Cornwall

Calstock Roman dig reveals 'unexpected' mine

Deep pits connected by tunnels are found at one of only three known Roman forts in Cornwall.

www.bbc.co.uk

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Mark Walters

@MarkWalters_

5 years

A suspiciously Roman military looking earthwork found just now with low relief lidar visualisation near St. Briavels, Forest of Dean while I was looking for something else - need to check if this is on the HER !

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Mark Walters

@MarkWalters_

6 years

Down to explore Sligo today. Finally got to see Queen Medb's Cairn at Knocknarea Mountain & the Carrowmore megalithic cemetery - fantastic area of limestone escarpments and ridges. The cairns are packed full of blocks of fossil coral!

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Mark Walters

@MarkWalters_

2 months

Very happy to report that my hospital consultant confirmed they managed to completely remove the prostate cancer in the operation and I have the all-clear. Just need to sort out the normal post-op after effects (total incontinence at the moment) and I’ll be back to normal 😀

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Mark Walters

@MarkWalters_

1 month

The remarkable sequence of Iron Age enclosures and a possible Roman fortlet on the ridge at Pen Toppen Ash near Langstone, South Wales #lidar #Archaeology

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Mark Walters

@MarkWalters_

5 years

Great reconstruction of the bizarre headdress of the Lady of Elche, Valencia, Spain (4th c. BC). Originally a polychrome bust made of limestone it is thought to represent the ceremonial headgear of an Iberian priestess, perhaps with Punic influences.

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Mark Walters

@MarkWalters_

3 years

The Roman walled town of Kenchester (Magnis) nr Hereford can be seen on the lidar as an irregular hexagon earthwork marking the former town walls. Low relief visualisation shows the E-W axial road that continues beyond. 2001 Google Earth imagery shows the internal roads clearly.

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Mark Walters

@MarkWalters_

6 years

The western facade defences of Old Oswestry #Hillfort photographed after the photogrammetry survey two weeks back. The enigmatic pits may be sampled with coring soon and this could give some indication of date and function. #HillfortsWednesday

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Mark Walters

@MarkWalters_

4 years

I think visiting Bryan Cader Faner cairn circle would have to be one of my favourite Bronze Age monument locations on the north edge of the Rhinog Mountains, Snowdonia for #MuseumsUnlocked

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Mark Walters

@MarkWalters_

4 years

Exploring Macedonia in #AssassinsCreedOdyssey & stumbled on this wonder of Ancient Greek cookery. Checked out if they are based on archaeological evidence - & they are ! It’s an Anthrakia or charcoal fired oven for heating/cooking & based on one in Delos Archaeological Museum

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Mark Walters

@MarkWalters_

5 years

The remains of Knucklas Castle, Powys built by the Mortimers around 1240. The earthwork & stone remains suggest a square keep with corner towers - all now collapsed. The castle was besieged & taken by the Welsh in 1262 then briefly re-garrisoned by Edmund Mortimer in 1282.

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Mark Walters

@MarkWalters_

2 years

If you want to see a great example of parch marks showing a Roman fort complete with the road running through it, internal features, a bath house complex to the east by the river & even traces of the external vicus settlement, have a look Caerhun, N. Wales

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Mark Walters

@MarkWalters_

7 years

Occasionally the quality of the information in #LiDAR just makes your jaw drop. This is Maglona (Old Carlisle) Roman fort & vicus settlement

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Mark Walters

@MarkWalters_

3 years

Spotted in a lane above Bagwyllidiart - the locals have a sense of humour 🙂

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Mark Walters

@MarkWalters_

11 months

If you like hillforts covered in hut circles here is the fabulous Foel Drygarn, west of Crymych, Pembrokeshire. It has approx 270 hut circles covering multiple phases of expansion & use, probably as a tribal centre. There are also 3 Bronze Age burial cairns on the summit #lidar

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Mark Walters

@MarkWalters_

4 years

Prepare to be amazed - The Maori Pa (hillfort) Maungakiekie on One Tree Hill, Auckland, NZ which utilises an extinct volcanic cone with extensive terraces & defences. It was the largest & most important pre-European Pa with a population of up to 5000. Abandoned in 1795. #lidar

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Mark Walters

@MarkWalters_

2 years

Lodge Wood Hillfort above Caerleon, Newport, Wales. Established in the 5th c. BC and occupied through to 4th c. AD. Inner oval enclosure at west end may be late Roman or post Roman. Three ramparts and ditches with outworks to west and two entrances. #HillfortsWednesday

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Mark Walters

@MarkWalters_

5 years

It's difficult to get a photograph of Tintern Abbey looking fairly desolate and ruinous without anything modern in front of it, but I quite liked this one. Portrait so click/tap for full view.

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Mark Walters

@MarkWalters_

6 years

A look-around video of the fabulous 13cm resolution #LiDAR of the remains of the 6th-13th century AD monastic community perched high on the island of Skellig Michael, Co. Kerry, Ireland. Now a World Heritage Site and an important site for breeding seabirds. #FridayLiDAR

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Mark Walters

@MarkWalters_

2 years

A #lidar look-around of the superbly preserved detail at Burrow hillfort, Shropshire. Look at all of those tiered hut circle platforms in the lower area ! They are divided off from the inner enclosure by a bank. Internal spring water source at east end #hillfortswednesday

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Mark Walters

@MarkWalters_

2 months

Wow 😮 Just as we found with the Belgian lidar data; if you want to see well preserved #WWI battlefield archaeology in France you have to look under the woodland areas. These trench systems and what I assume are mine craters lie west of Vimy.

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Mark Walters

@MarkWalters_

2 months

A reminder about the excellent French lidar viewer by Simon Gascoin @sgascoin here It provides a DTM view of the current national coverage as a side-by-side viewer with google satellite imagery for comparison. Great for archaeological site prospecting 🙂

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Mark Walters

@MarkWalters_

2 months

Aerial parch mark & #lidar views of the combined hillfort and 13th century castle remains at Castell Dinas near Talgarth, Powys. The square castle keep shows up well along with 2 long rabbit warrens & other buildings to the south. One of my favourite walks #hillfortswednesday

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Mark Walters

@MarkWalters_

3 years

Castell Nanhyfer, Pembrokeshire is a good example of a 12th century medieval motte and bailey castle utilising a former multivallate Iron Age hillfort. 3 banks and ditches curve around the north side and the motte mound is built over the inner rampart #HillfortsWednesday

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Mark Walters

@MarkWalters_

4 years

Popped up to the spectacularly situated Tre'r Ceiri hillfort in the Eifl mountains today. Haven't been here for 20 years. One of the best preserved hillforts in Britain & occupied between the Late Iron Age & 4th c. AD with 400 inhabitants.

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Mark Walters

@MarkWalters_

5 years

Symonds Yat promontory #hillfort in the Forest of Dean @DeanWye revealed by the new @EnvAgencyGeomat 1metre resolution national LiDAR coverage. Great to see the four defensive ramparts in such detail. The inner bank has a huge counterscarp bank making it look like five ramparts.

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Mark Walters

@MarkWalters_

3 years

A lot of people have asked me how to do this, so here is a quick pdf guide download on how to create 3D lidar models in QGIS with visualisation layers & other overlays. It is based on the Welsh lidar data & assumes very basic GIS & QGIS skills

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Mark Walters

@MarkWalters_

3 months

@Fionagale4 Going to try listing 👍🏻

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Mark Walters

@MarkWalters_

3 years

I gave up at 20+ enclosures/hillforts in one 10km grid block of lidar (NT40) south of Hawick - just too much to look at - fantastic area !

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Mark Walters

@MarkWalters_

6 years

Loads of cropmarks visible on the new Google Earth imagery dated 30/6/18 which you can view via Google Earth Desktop. Keep an eye on the Imagery Date at bottom of screen to check date as you roam. These are from the Solway Coast area Burgh to Maryport, Cumbria. Lat/Long in image

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Mark Walters

@MarkWalters_

3 months

@JohnWri39761279 Free standing & made locally

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Mark Walters

@MarkWalters_

6 years

Camp Hill Hillfort, near Milfield, Nortumberland. Now visible only as cropmarks. Image from Google Earth in July this year #HillfortsWednesday

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Mark Walters

@MarkWalters_

4 years

Was hoping to be out fieldwalking this possible new Roman fort in the Forest of Dean around now - maybe in Autumn. Will also fly it with the drone for a higher resolution surface model. Early Roman denarii metal detector finds support the fort identification

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Mark Walters

@MarkWalters_

6 years

#LiDAR look-around video of #Carisbrooke #Castle on the Isle of Wight. Initially a Saxon burh from c. 1000. Modified as a Motte & Bailey castle c. 1100-1135 under Henry I. Artillery fort 1587-1602 with the addition of 5 angular bastions. Prison for Royalists inc. Charles I 1647-8

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Mark Walters

@MarkWalters_

5 years

The fortress of Sarzanello, Liguria, Italy - If you are into Renaissance architecture & the development of advanced artillery fortifications this is where it all starts. It has the first example in the world of a rivellino (ravelin), or bastion built between 1497-1502 by Genoese

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Mark Walters

@MarkWalters_

2 years

Lovely set of paleochannels of the River Elwy south of St. Asaph

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Mark Walters

@MarkWalters_

2 years

Some of my drone images from a July 2018 survey of internal building parch marks revealed at Brecon Gaer Roman Fort. The principia, praetorium, barracks, granary & bath house (apse) can be seen. Garrisoned from 75AD by Spanish cavalry & 2nd Legion in 2nd c. AD #RomanFortThursday

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Mark Walters

@MarkWalters_

2 years

Pen Dinas hillfort, Aberystwyth. Rendered in 3D from #lidar data using #aerialod for some moody lighting. Now part of a community archaeology project driven by @PenparcauForum @DyfedArch @cadwwales #HillfortsWednesday

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Mark Walters

@MarkWalters_

6 years

The Dun Ailinne ceremonial enclosure in Co. Kildare is one of six sites across Ireland with royal associations. The enclosure is believed to be the location for the inauguration of the kings of Leinster. It encloses 13ha & was active during the Iron Age up to the 6th c. AD #LiDAR

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Mark Walters

@MarkWalters_

3 years

An amazing bit of archaeological landscape😯Bonchester hillfort nr Hawick, Scotland with numerous phases of enclosure around the main hillfort & many round huts. There's another IA settlement on the N slope & a medieval farmstead west of that. More here

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Mark Walters

@MarkWalters_

4 years

Found some old slides of the Oxford Archaeology excavations at the Uffington White Horse in 1991 including a section through the Uffington hillfort defences. You can see the deep construction layers for the White Horse chalk figure. I think they were trialling OSL dating too ?

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Mark Walters

@MarkWalters_

5 years

3D model of the Volcan de Fuego volcano in Guatemala made using Sentinel-2 L1C satellite imagery dated 15-4-19 during a lava eruption. 30m SRTM elevation data from @OpenTopography The conjoined peak is Acatenango & the dormant separate volcano is Volcan de Agua @CopernicusEU

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Mark Walters

@MarkWalters_

6 years

Tomen Y Mur Roman Fort near Trawsfynydd, N. Wales rarely reveals its interior as parch marks, but a passing visit on Sunday showed that the long rectangular barrack blocks (foreground) & square Principia (headquarters building, centre background) are becoming visible in the grass

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Mark Walters

@MarkWalters_

3 years

Cracking little multivallate hillfort called The Chesters near Drem in East Lothian, Scotland - terrible defensive position though with that overlooking ridge just 100m to the south!

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Mark Walters

@MarkWalters_

10 months

It's not often a watching brief finds a whole missing wing of a late medieval house with up to 8 wall courses. It's quite nice inside too. Fortunately they only want a patio here so we are getting them to put it within the medieval wall & excavating the soil & rubble in the room

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Mark Walters

@MarkWalters_

6 years

The Roman camps at La Poza near Reinosa, Spain. I last looked at these over a year back on some basic software & thought I would revisit the site. The camps were possibly built by Legio IV Macedonica under Augustus in the Cantabrian Wars of 29-19 BC #LiDAR low relief model

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Mark Walters

@MarkWalters_

2 years

A #lidar fly-around of the impressive Mam Tor hillfort west of Castleton, Derbyshire. Note the vast number of circular house platforms cut into the interior. It's an area famous for landslides too & a large part of the SE side of the hillfort has been eroded #HillfortsWednesday

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Mark Walters

@MarkWalters_

2 years

Popped into Lydney Roman Temple at Lydney Park Estate. One of the few days in the year you can visit. Haven't been here since we were repairing the Roman mine access roofing in 1985. Gill was doing some sketching at the bath house. Roman roof tile & wall plaster just lying around

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Mark Walters

@MarkWalters_

7 years

Just added the Maiden Castle 3D LiDAR model for viewing with annotations here #LiDAR #archaeology #hillfort #3D

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@MarkWalters_

5 years

1m #LiDAR fly-through of the Mayburgh & King Arthur's Round Table late Neolithic henges near Penrith, Cumbria. Mayburgh has a 3m high bank of river derived stone & a central standing stone (originally 4 & 2 settings in the entrance). @EnvAgencyGeomat @EnglishHeritage

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Mark Walters

@MarkWalters_

4 years

Scanning through the BL George III Topographical Collection & found this 1624 plan of the fort & governors house at Charemont, Co. Armagh, Ireland. The 1622 fort replaced an earlier 1602 design with new masonry & artillery platforms & saw action in the 1640’s & Williamite wars

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@MarkWalters_

3 years

Well that was a nice surprise🙂I wasn't expecting the outline and bastions of the French 1549 fort at Luffness to survive the 17th-19th landscaping and extensions, but it is definitley there! Built by the French commander De Thermes to block supply lines to besieged Haddington

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Mark Walters

@MarkWalters_

4 years

Thought this was something relatively modern like a formal garden feature at first, but it turns out to be an unusual 13th century castle site at Assebroek in the Flanders region of Belgium. The central round tower was surrounded by concentric moats

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Mark Walters

@MarkWalters_

2 years

Great to see that the Swedish #lidar covering the Birka #Viking period settlement on Bjorko island, Lake Malaren is now available. Birka was an important trading settlement and port between c. 750 and 975 AD. There are around 3,000 graves in three main cemeteries.

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Mark Walters

@MarkWalters_

6 years

Gorgeous day yesterday re-visiting Twmbarlwm Motte, #Hillfort & Cairn group to do some #drone #photogrammetry for a Cadw condition survey after the monument was burnt in an arson attack in July. 10cm of soil lost in places down to subsoil & stone, particularly on the ramparts.

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@MarkWalters_

1 year

Ingarsby deserted medieval village near Leicester is one of the finest examples in the UK. It declined after the Black Death & was granted to Leicester Abbey in 1352 as a grange & was deserted by 1469 & used as pasture. The moat surrounds the original manor & grange site #lidar

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@MarkWalters_

5 years

Loving the artwork for the maps of the Kingdom Come: Deliverance game world set in 1403 Bohemia

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@MarkWalters_

1 year

Symonds Yat Hillfort, Forest of Dean - Normally hidden under trees between the car park area & the tourist viewpoint it shows up well on the #lidar with four defensive ditches & rampart banks & a well preserved inner counterscarp bank. Info panels in car park #HillfortsWednesday

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Mark Walters

@MarkWalters_

12 days

Absolutely stupendous #aurora over the UK right now 😧 Just a few live shots off the iPhone on night photography mode but it is so bright you can see the colours, rays and pillars of light filling the northern view and right overhead so scan from east to west and watch it change

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Mark Walters

@MarkWalters_

6 years

Clearly the magical arts are still practiced by the inhabitants of Rhoshirwaun near Castell Odo, Aberdaron, Gwynedd - spotted this Pentagram in fields at the back of the village on the #LiDAR and satellite imagery

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Mark Walters

@MarkWalters_

2 months

Revealing the full plan of the well preserved Welsh motte and bailey castle known as Domen Gastell at Llanfechain, Powys using #lidar The castle sits on the edge of a former river terrace and is thought to have been built under Owain Fychan ap Madog in 1166 #mottemonday

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Mark Walters

@MarkWalters_

6 years

I do like a bit of wreckage and decay in the landscape - a few photos from today in the hills above Trawsfynydd, North Wales. Old farmsteads, slate quarries, Roman practice camps and even a gold mine on the route today. #photography #blackandwhitephoto #landscape #Wales

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