Heriot’s Dyke & Harefaulds Hillfort: Forgotten Fortifications of the Scottish Borders

Heriot’s Dyke, Greenlaw: The Borders’ Forgotten Earthwork

What Is Heriot’s Dyke?

Heriot’s Dyke is a linear earthwork—a raised bank accompanied by a ditch—running through the Berwickshire countryside, particularly around Greenlaw. Less studied than monumental structures like Hadrian’s Wall, its true origins remain a puzzle, with scholars and locals alike speculating on its age and function.

Possible Purposes of the Dyke:

• Defensive Line: A tribal or territorial boundary during a time of inter-clan skirmishes or Anglo-Scottish unrest.

• Political Division: A medieval estate marker or clan border used to delineate feudal land rights.

• Roman Relic: Perhaps influenced or reused by Roman forces as a strategic boundary line.

• Livestock Barrier: A practical solution to control the movement of cattle and sheep, aligning with the region’s agricultural roots.

Despite its obscurity, Heriot’s Dyke holds archaeological and historical importance, reflecting how the Borders landscape was managed, contested, and shaped by its early inhabitants.

Visiting Heriot’s Dyke

You won’t find tourist signs or visitor centres here. Heriot’s Dyke is subtle—more suggestion than spectacle—but that makes the discovery all the more satisfying.

• Where: Near Greenlaw, Berwickshire

• How to Find It: Old Ordnance Survey maps are your best guide, showing faint traces across fields and moorland

• How to Visit: Much of the dyke crosses farmland; always seek landowner permission or stick to established paths

For those with a love of lost landscapes and ancient lines, Heriot’s Dyke offers a rewarding exploration.

Harefaulds Hillfort: Stone Fortress of the Iron Age

Just a short journey north near Lauder, another relic of Scotland’s tribal past awaits: Harefaulds Hillfort—a striking Iron Age fortification with commanding views over the Blythe Water.

The Structure:

• Roughly 117 x 77 metres, occupying a natural spur, ideal for defence

• Built entirely from stone, unlike nearby earthwork forts—no ditch, but a thick rubble perimeter

• Inside, traces of roundhouses and enclosures suggest a once-bustling settlement

Historical Significance:

Harefaulds likely thrived in the late Iron Age, housing an organised tribal community. While some features may reflect later pastoral use, the original construction speaks to a time when clans fortified their hilltops, watching for enemies and living close to the land.

Visiting Harefaulds Hillfort

Harefaulds is a fantastic destination for hikers and history buffs alike.

• Location: South of Lauder, overlooking Blythe Water

• Access: Reachable via walking trails—expect open views, ancient stonework, and the thrill of discovery

• What to See: Stone wall remnants, hut circles, and a vantage point that shows why this spot was chosen

Standing at the edge of the hill, it’s easy to imagine fires burning in roundhouse hearths, warriors scanning the horizon, and the rhythm of tribal life echoing through the centuries.

Why These Sites Still Matter

Both Heriot’s Dyke and Harefaulds Hillfort represent chapters in a story that pre-dates recorded Scottish history. They show us that long before written records, Scotland’s people were:

• Building

• Farming

• Defending

• And laying down invisible borders we’re only now beginning to rediscover

These sites remind us that history isn’t always loud—sometimes it’s a faint ridge in a field or a crumbling wall on a windy hilltop.

Conclusion: Echoes of the Ancients

While modern life marches on in the towns of the Borders, the earth beneath our feet tells older stories—of ancient division, survival, and identity.

Heriot’s Dyke and Harefaulds Hillfort may not boast crowds or flashy displays, but their quiet presence is all the more powerful.

For those willing to venture off the beaten path, the Scottish Borders still hold forgotten fortresses and hidden histories, waiting to be explored.