Gask House watchtower stood just south of the Roman road, beside a separate temporary camp. It is important both for its compact excavated plan and for a pottery fragment that has played a substantial part in dating the Gask towers.
Visit Gask House
📍 Location: Gask House, Perth and Kinross. National Grid reference NN 9903 1919.
👁 What survives: Woodland earthworks beside the road, close to a separate temporary camp.
⭐ Best for: A small tower and an important pottery sherd.
🥾 Visit: The pin marks the archaeological site, not a parking place, entrance or confirmed walking route. Use existing appropriate paths, respect crops and neighbouring homes, and follow local signs and any forestry restrictions.
🏛 Explore nearby: Gask Ridge watchtower guide · Strageath Roman Fort
Google Map location · Trove site record · HES scheduled monument record · Roman Gask Project
Approximate site pin, converted from the published National Grid reference (OSGB36 / British National Grid) to WGS84. Use it to locate the site, not its scheduled boundary. The reference is shown at approximately 10 metres precision; it is not a new survey.
Gask House at a glance
| Feature | Evidence and interpretation |
|---|---|
| Period | Usually assigned to the late first-century, Flavian Gask system; precise site chronology remains uncertain. |
| Remains | Woodland earthworks beside the road, close to a separate temporary camp. |
| Roadside position | South of the Roman road. |
| Possible communication | Gask House → Raith → Strageath |
| Garrison | The unit and number of soldiers are not securely known. |
The remains and their investigation
Following Christison's work in 1900, Anne Robertson and James Thomson investigated the tower in 1965 and 1966. Three of the principal post holes were found and the fourth position reconstructed. The reported timber footprint was about 3.05 by 2.44 metres, although measurements vary according to which points within the post holes are used.
The excavation distinguished a rounded rectangular bank from the more nearly circular ditch outside it. The bank, about 2.74 metres wide, incorporated laid turf beneath clay upcast. The timber building sat towards the back of the interior, leaving more room on the entrance side. This is a useful reminder that the circular earthwork did not necessarily contain a circular bank or centrally placed tower.
The key find was a mortarium rim, part of a mixing bowl. Katharine Hartley identified its manufacture as Flavian, approximately AD 70–95, in the pottery-producing area south of Verulamium. It was recovered without a secure stratified context. Its date supports an early Roman setting but cannot alone fix the tower's construction or abandonment year. The neighbouring camp should likewise not be assumed contemporary simply because it is close.
Watching the road
The nearby road linked the larger garrisons and the smaller posts. A watchtower gave soldiers an elevated position from which to observe traffic and the surrounding ground. The close spacing of these installations makes sense for surveillance as well as communication: recognising movement on a road is a different task from seeing a distant warning signal.
Modern trees, field boundaries and road surfaces are later parts of this landscape. They can hide both the earthworks and former sightlines. A modern ground-level view should therefore be compared cautiously with the possible outlook from a timber platform.
Gask House on the Gask Ridge
Possible communication with the forts
In Woolliscroft’s proposed network, the ridge-top towers as far east as Midgate could communicate with Raith. Raith could then relay a signal to Strageath. The diagram shows this possible two-stage connection for Gask House; it does not claim a demonstrated direct view to the fort.
These links depend on assumptions about tower height and visibility. Vegetation, weather and whether the installations were occupied at the same time also matter. Neither the diagram nor the surviving earthworks establishes a signalling code, a fixed watch rota or the size of a tower crew.
References and further reading
Trove: Gask House — NRHE 25977 — national site record, location and archaeological references.
HES scheduled monument record — SM1604. HES designation records are available through Trove.
Robertson: Gask House, excavations in 1965–66, published in 1974 — report or source text hosted by the Roman Gask Project.
Woolliscroft (1993), Signalling and the design of the Gask Ridge system, PSAS 123, 291–313 — possible links and their limitations.
Woolliscroft and Hoffmann, The Roman Gask system fortlet of Glenbank, PSAS 139, 167–193, Table 2 — comparative roadside positions. Westerton follows its excavation report where the descriptions differ.
Read alongside the Gask Ridge watchtower guide and the guide to Roman forts in Scotland.
