Category Archives: Strathconon and Ross-shire

Crannogs: The Search Continues

by Richard Guest

Investigating a possible crannog at Loch Morie, June 2023

Almost three years has passed since the inception of the NOSAS Crannogs project, one sunny post-lockdown afternoon sitting around my patio maintaining a 2-metre separation, unable to meet inside but mightily pleased to be chatting face to face instead of by zoom.  Who had even heard of zoom before lockdown?  We hatched a cunning plan – to search satellite images for islands which might prove to be unrecorded crannogs.  Surely there must be lots of them, secreted away in remote glens where archaeologists rarely tread?  Well, no, actually.

Movement was still restricted so there was no shortage of volunteers, happy to have something different to do at home, and we soon had plenty of islands to look at in the field.  Some were explored in 2022 but by the start of 2023 we had a shortlist of very promising looking targets which certainly looked like crannogs from the shore.  They would need snorkelling or diving around to check out their underwater credentials to be sure whether they really were artificial constructions.  There was also the Loch Achilty crannog, which had been dived and surveyed in 2022 and where timbers had been found which could potentially be radiocarbon dated (see previous blog posts here and here).

Aside from crannogs, but continuing the underwater theme, I had spent two weeks in 2022 diving HMS Natal in the Cromarty Firth as part of a Nautical Archaeology Society project.  So it was that Claire Hallybone from NAS came up to present the findings of the Natal project at a NOSAS “MAD” evening (that’s Monthly Archaeological Discussion for the uninitiated) and also to dive some real and potential crannogs with me.

It was early March and whilst the weather was conducive to a jolly evening chatting in Strathpeffer Hall, for diving – not so much.  Nevertheless, we braved a chilly Loch Achilty and were successful in obtaining a timber sample from the shallower of two embedded timbers.  It was surprisingly hard work.  I made two parallel sawcuts in the edge of the wood and then tried to chisel out the bit in between with my knife but the wood was so hard I broke the tip off my knife. Eventually the sample was obtained but it took about 40 minutes, by which time we were shivering with cold and both agreed one dive was enough for the day and the second, deeper timber would have to wait for another time.

Loch Achilty crannog: This timber was radio carbon dated to c. 1359 AD, and another to c. 1060 AD (Duncan Ross)
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Does Remote Loch an Tachdaidh Contain a Crannog?

by Roland Spencer-Jones

This remote loch is far from any normal vehicular access. The boundary between Attadale and Pait estates runs roughly SW-NE through the middle of the loch. Approach routes to the loch are from Pait on Loch Monar to the NE, Attadale towards the head of Loch Carron in the W, and Killilan via Strath Duilleach and the Iron Lodge to the SW. There are three islands in the loch, two of which are of interest.

OS maps showing location of Loch Tachdaidh

Historic Environment Scotland’s Canmore (ID 12075) and Highland Council Historic Environment Record (MHG44808 [Causeway] & MHG7444 [the island itself]) both describe the same features of a possibly artificial island in the southern part of Loch an Cladaidh. It is linked to a promontory on the south shore by two causeways to the SW and the NE.

The two historical references to this possible crannog are:

Odo Blundell’s 1913 paper: Further Notes on the Artificial Islands in the Highland Area. PSAS, vol XLVII, p 281:

The Gead Loch. He quotes correspondence with a local minister, the Rev. D. Mackay, Marydale, Strathglass who reports: “In this loch, which is just across the boundary between Ross-shire and Inverness-shire there are two entirely artificial islands, one of them with an evident causeway to the shore”.

Ordnance Survey visit by (NKB) 24th October 1966:

There are no crannogs on An Gead Loch, but at NH 0955 3797 about 15.0m from the S shore of Loch an Tachdaidh, there is a natural island 40.0 by 26.0m and 2.0m high, connected to the mainland by a well-defined causeway 3.5m. wide and protruding about 0.2m above the surface. There are no structures on the island.

As described above, Blundell recorded local knowledge of two crannogs in 1913 in An Gead Loch, which the OS names as the loch just to the north-east of Loch an Tachdaich, separated from it by a short river.  However, local tradition calls all three lochs here “The Gead Lochs”. There are no potential crannogs in the OS’s An Gead Loch, so it is fair to assume that the islands in Loch an Tachdaidh are the ones to which Blundell refers. 

The 1966 OS survey report states that the island 15m from the south-east shore is natural but the causeway to it is man made. After investigating it, that is our conclusion too. The island towards the SE shore of the loch is centred at NH 09580 37988, with two causeways:

  • Southwest Causeway – NW end: NH 09572 37970, SE end: NH 09585 37958
  • Eastern Causeway – NW end: NH 09595 37987, SE end: NH 09612 37978
Looking NW across Loch an Tachdaidh from the shoreline track. Note the proximal island we investigated. Of the two distal islands, the other potential crannog is on the R (Glenn Wilks).
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The Legacy of Scotland’s Rock Art Project

by Alan Thompson.

NOSAS were partners in and major contributors to Scotland’s Rock Art Project (ScRAP) which ran for five years from January 2017 to December 2021.  We enjoyed some very productive field work and learned a lot about prehistoric rock art (sometimes called cup and ring marked rocks) and also about how to run a community-based project.

Figure 1 A favourite panel at Fleuchlady

This is not an attempt to analyse the rock art in our region or to provide a critique of what was achieved during ScRAP (for that it might be best to download the booklet produced at the end of the project – Prehistoric Rock Art in Scotland).   It’s more personal, really a set of memories and reflections on what we did, and a few suggestions for the future.  There is still more rock art to record in Northern Scotland and some of us would like to continue with that.  Should we therefore establish a new, perhaps smaller project, making use of our experience with ScRAP?

A bit of history

Our interest in prehistoric rock art begins with the Ross-shire Rock Art project (RRAP) led by John Wombell in the 1990s and early 2000s (before my time with NOSAS).  John and a NOSAS team set out to find and record the rock art in (broadly) Ross-shire.  This involved research of the records, contact with local people, a good deal of ‘fossicking’, and experiments with various methods of recording.  The output was mostly on paper, i.e. forms filled in and photos printed.  Many finds were notified to the Highland HER.

Figure 2 Pre-ScRAP photography, low-angle lighting

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My Highland Adventure: Diving Loch Achilty Crannog and HMS Natal

by Duncan Ross

During lockdown, apart from eating too many pancakes, NASAC (Nautical Archaeology Society affiliated diving club) member Duncan Ross set himself a grand future task of visiting different kinds of underwater archaeological sites around Britain. This summer he managed to add a couple of unique Scottish sites to his gradually-expanding list.

After around two years of communication, in August 2022 I was invited to help out on a crannog investigation in the fairly anonymous Loch Achilty, just a little north of Inverness city. Assisting North of Scotland Archaeology Society (NOSAS) member Richard Guest and his intrepid team, I spent two days at a most-tranquil setting scuba diving, investigating, recording and taking photos and film of a site that could be anything from a couple of hundred years to a couple of thousand years old. 

Richard Guest explores mysterious timber and rocks around the Loch Achilty crannog: Image: Duncan Ross

Crannogs are a fairly unchartered area in the field of archaeology, and most questions about their creation and the purpose of their locations within lochs remain unanswered and open to speculation. All that usually remains is an artificial island of stones piled on top of one another – artefacts and human traces are frustratingly rare, as are diagnostic patterns that could lead to a method of classification. The crannog centre at Loch Tay focuses on the iron age roundhouse model that was discovered there, but little proof exists that others were constructed and utilised in the same way. The depth of the Loch Achilty crannog, previously unrecorded, is an ultra-accessible 2.5 metres. Needless to say, dive times were extremely long for Richard and myself.

Richard Guest and Duncan Ross prepare to place garden canes around the crannog to aid with measurements. Image: Elizabeth Blackburn
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The NOSAS Crannogs Project

by Richard Guest

I have long been fascinated by crannogs. These are articial island dwellings such as the one in Loch Achilty, pictured above (see Canmore).  I remember back in the 80’s tiptoeing across a partly submerged causeway to visit one in a Shetland lochan.  Then, later, visiting the reconstruction in Loch Tay and seeing a TV programme about it.  Later still, whilst on a Nautical Archaeology Society training course I met one of the divers who had been on the Loch Tay project and heard first hand what it was like to make such amazing discoveries.

About 10 years ago, my late wife Jonie and I decided to try and walk out to the Redcastle crannog in the Beauly Firth (see Canmore).  About twenty squelchy steps was enough to convince us that this was a BAD IDEA and we retreated to solid land.  And oh! The smell!  So the next expedition was by boat at high tide and we passed over Phopachy crannog (see Canmore), which we could see on the sounder but could make nothing out through the water.  Another trip at a lower state of tide, we could see the crannog but the water around it was too shallow to approach in the boat.  We didn’t try again.

What we did do was to dive around another crannog, the one in Loch Brora (see Canmore).  The water was so peaty we saw literally nothing.  We knew we had reached the bottom when we felt it beneath us.  I put my hand in front of my mask but couldn’t see it, even with a powerful torch.  I think I could feel some square timber but it might have been a modern fence post caught in weed.

More recently I became aware, through both diving and archaeology sources, of discoveries of Neolithic pottery found underwater around crannogs in the western isles (see Current Archaeology article).  This exploded the received wisdom that crannogs were of iron age to post medieval date.  Then in 2021 NOSAS were lucky enough to have a “Zoom” lecture about crannogs, by Michael Stratigos from the University of York, which is available on You Tube (below). This is when the idea for a NOSAS crannogs project was born.

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Achnasoul and Medieval Earthwork Castles in Ross Revisited

by Meryl Marshall

The moated homestead in Achnasoul Wood (NGR NH 48808 51821 Canmore ID: 274702 Highland Council (HC) HER MHG29192) 4kms west of Muir of Ord was visited by NOSAS members on a winter walk in February 2020 just before “lockdown”. The visit renewed my interest in the medieval period in this area and I began some research into the two homesteads of Davids Fort and Achnasoul with the intention of producing a blog for the NOSAS website. It wasn’t long before I realized what a complex topic I had taken on so I decided to split it into two; the first part, on Davids Fort, appeared on the NOSAS website in May 2020, this piece, focusing on Achnasoul, is part two.

The eastern half of the site showing the ditch and double banks with the mound on the right – looking SE

The Achnasoul site is a ringed earthwork with a central mound which was originally interpreted as a “moated homestead” but recently confirmed (on Canmore) as a motte and bailey. It is remarkably well preserved and has been one of my favourite local sites for many years. NOSAS carried out a planetable survey on a cold, wintery day in 2005 (report on NOSAS website at: www.nosas.co.uk/siterecords.asp.) The site remains something of a mystery and seems out of place; clearly it is fortified as it has substantial double banks enclosing a ditch but yet it is situated in low lying ground with higher knolls surrounding it – not a particularly defendable position!

In 2017 the site was scheduled by Historic Environment Scotland (HES) – SM13629. The description in the scheduling document says:               

The monument is a large earthwork enclosure comprising a ditch and two concentric banks which enclose a sub-circular area measuring around 43m northwest-southeast by 39m northeast-southwest within which is a raised mound. The ditch defining the enclosure measures 4m to 5m in width and 1.5m in depth and is broken by two causeways on the northwest and southeast. The outer bank of the ditch is complete and varies in height, reaching a maximum of 2m… Internally, the raised mound lies in the northern part of the enclosed area and is c25m diameter at its base, reaching a maximum height of 2m. The summit is encircled by a fragmentary bank, which encloses an area of around 11m diameter.

The size and form of the visible remains… represents a rare survival of a moated homestead of medieval date.

A processed image of the Achnasoul site from a lidar survey (contains public sector information licensed under the Open Government Licinse v3.0)
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Kinellan Crannog, Strathpeffer

by John Wombell

Loch Kinellan, Google Earth 2015.

A few notes on Kinellan Crannog for crannog enthusiasts.  We are fortunate to live at Kinellan, about 400m away from the crannog as the crow flies.  In February this year Kinellan Loch froze over to a depth of 10” and we had days of glorious sunshine when local families were taking their lockdown exercise out on the ice, and we spent an afternoon on the crannog taking photos and  chatting to neighbours and their children. About 15 years ago I remember leading a NOSAS visit out to the island during another big freeze.

Kinellan Crannog taken from the south shore looking north, February 2021.

Some years ago 4 NOSAS members obtained permission from Historic Scotland and the owner to remove some fallen willow that had tumbled into the loch on the south side, in order that locals and visitors could see from the shore track the Medieval stone work surrounding most of the artificial island.  That was two days of very hard work, hand winching fallen trees back out of the loch then cutting them up.   Seeing young children exploring the island this February made me wonder whether the crannog was ever a family home with children playing or had it always been a male dominated stronghold.

Fraser’s 1916/17 report of the 1914/15 and 16 excavations was published in the PSAS and is available online. It is compulsive reading and I shall not spoil it for you by delving too far into the report.  Mr Fraser was a teacher in Dingwall and was only able to supervise the excavations part time and during school holidays.  With WW1 raging he had difficulty finding workmen but he eventually found two local men and all work appears to have been done with spades.  There is no mention of trowels.  He did however engage a Dingwall architect to make measured drawings and another teacher to make sketches.   A third person undertook the photography.  Fraser was as thorough as he could be at that time and he records a lot of detail.  I do not know whether there is an official archive stored away somewhere but a century on I think an updated expert re-interpretation of Fraser’s work would be a good starting point for new research.

The last known use of the crannog was as a kitchen garden and orchard by the tenant of Kinellan Home Farm in the late 19th and early 20th C.  A thicket of old fruit tree rootstock scrub still survives and few tangled gooseberry bushes.  Today though the crannog is dominated by dense mature ash and willow trees, an occasional gnarled Hawthorn and two very fine birch trees.  Many of the willows have fallen down, most are dead and rotting away but a good number, especially those that have tumbled into the loch remain alive and have produced masses of new stem growth called Phoenix growth – raised from the dead!

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David’s Fort Revisited – and a Strange Coincidence?

By Meryl Marshall

With movements restricted due to the coronavirus pandemic it was inevitable that I would find myself at David’s Fort, near Conan House, just 2kms from my home. This impressive earthwork, variously interpreted as a “motte”, a “moated homestead” (OS map) and a “moated site” has received lots of attention from NOSAS in the past, see Marion Ruscoe’s blog of 2016, but the site remains as mysterious as ever. I was pleased to see that the area is much more open than it used to be, but the surrounds are rapidly becoming overgrown with scrubby brambles, broom and whins. The visit set me thinking once again about the origins and history of the site, with more time at home I set about some online investigations.

David’s Fort (Canmore ID: 12866, Highland Council HER: MHG8986) is at NGR NH 5394 5328 and consists of an impressive wet ditch 4m deep enclosing a trapezoidal area measuring 25m from N to S and 26m to 32m transversely. The ditch is enclosed by an external bank standing up to 3m height but 1.5m externally. Internally the only feature visible is a circular depression 7m in diameter and 1m in depth in the western half; traces of what may have been a bridge spanning the ditch on the west side have also been reported (June 1979) The moat still contains water and was originally fed by a waterway running from an artificially constructed pond possibly of more recent origin 100.0m to the east, to a cut in the bank at the NE corner.

The site is located on the forested slope above the River Conon 1km to the east of Conan House. It is close to what, in the Medieval period, was a crossing of the River Conon. Here too was the old church of Logiebride (or Logie Wester), and the site of the Battle of Lagabraad in 1481. This area, at the “neck” of the Black Isle, will almost certainly have been a meeting point of routeways for centuries, if not millennia.

David’s Fort looking SW

A processed image of Davids Fort from a lidar survey (contains public sector information licensed under the Open Government Licence v3.0) © A Thompson. This model has also been uploaded to Sketchfab and can be seen in 3D at https://sketchfab.com/3d-models/davids-fort-d26cbff5d5184af18d157f7b6be94dad

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