From there, he continues to Stonehaven, a striking coastal town where the Highland Boundary Fault meets the North Sea. Walking out onto the headlands and promontories, Edward reaches a rare place where you can literally stand on the Fault itself, with Highland rocks on one side and Lowland rocks on the other.

It’s a powerful conclusion to a journey through stone, story, and time.

As Edward reflects on the places, people, and ideas that have shaped the series, we look back at what this geological line really means — not just in physical terms, but in how it helps us see Scotland, and ourselves, differently.

🧭 Themes: Geology in the landscape, visible fault lines, reflection and connection

📍 Locations: Edzell, Stonehaven

📚 Further Reading: “51 Best Places to See Scotland’s Geology” – www.scottishgeologytrust.org (includes Stonehaven and Balmaha sites)

Join us one last time as Edward stands on the Fault and brings this five-part journey to a powerful close.

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Marian Bruce, founder of the award-winning Highland Boundary Distillery (highlandboundary.com), has named her business after the Fault itself - celebrating its role in the wild plants and flavours that grow along its edge.

Clare Cooper, co-creator of the Cateran EcoMuseum (cateranecomuseum.co.uk), introduces us to a “museum without walls” - a living, breathing exploration of 6,000 years of human history and 400 million years of geological history shaped by the Fault.

Together, they show us how a geological feature can ripple out into culture, ecology, and community.

We also venture to the dramatic Reekie Linn waterfall, one of Scotland’s largest, where the landscape once again speaks to the powerful forces that carved it.

🌿 Themes: Bioregional identity, cultural ecology, local enterprise, storytelling through place

🎙️ Guests: Marian Bruce (Highland Boundary Distillery), Clare Cooper (Cateran EcoMuseum)

📍 Location: Alyth, Perthshire

📚 Explore More:

– Highland Boundary Distillery

– Cateran EcoMuseum

– Learn more about bioregions at Edward’s website: www.bioregioning.com

Listen in as the Fault becomes more than rock - it becomes a way of seeing, living, and connecting to the land.

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Here, Edward Tyler visits the Earthquake House - a unique, unassuming building that hides a fascinating story beneath its roof. Inside is one of the UK's oldest earthquake monitoring stations, still recording tremors to this day.

Our guide is Chris Palmer, the house’s dedicated custodian. He explains how this little hut, nestled in a sleepy village, picks up rumbles not only from the Highland Boundary Fault but from seismic events across the globe. The Fault, it turns out, may be ancient - but it’s still very much alive.

Even when locked, the Earthquake House offers interpretation panels outside and a window to peek through. And if you're lucky, you might catch Chris checking in on the equipment - and get a glimpse of the seismograph in action.

🌍 Themes: Earthquakes in the UK, seismic monitoring, Comrie’s geological history, living fault lines

🎙️ Guest: Chris Palmer, custodian of the Earthquake House

📍 Location: Comrie, Perthshire

📚 Further Info:

– Learn more about Comrie's seismic legacy at https://www.undiscoveredscotland.co.uk/comrie/earthquakehouse/index.html 

Tune in to hear the ground’s ancient heartbeat — and discover how even the quietest corners of the country can still shake.

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On a shoreline walk in search of Serpentinite, the distinctive rock we first encountered back in Innellan, Ed traces the path of the Fault once more. Climbing to a viewpoint above the loch, he takes in a breathtaking panorama that makes the contrast between Highlands and Lowlands unmistakable - a geological dividing line written across the landscape.

Along the way, we learn how striking local features like Conic Hill and the string of islands across Loch Lomond aren’t random: they were formed by the same tectonic forces that shaped the Highland Boundary Fault, and now conveniently map out its invisible route.

🪨 Themes: Landscape interpretation, tectonic legacy, visible geology, serpentine rock, natural boundaries

📍 Location: Balmaha, Loch Lomond

🧭 Try It Yourself:

– Download the walking leaflet: “Balmaha: Where the Lowlands Meets the Highlands” from www.geologyglasgow.org.uk

– Visit the Balmaha Visitor Centre (free entry) for interpretation panels and a hands-on rock collection

Join the walk as Ed stands on the very threshold of Highland and Lowland - and lets the landscape tell its ancient story.

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We begin at the south-western end of the Fault, in Innellan, a coastal village on the Firth of Clyde. Here, Edward meets Keith Torrance, a geologist who lives just steps away from where the Fault cuts through the beach. Amongst the rocks and tide, Keith reveals how to read the land — explaining the dramatic forces that forged the Highland Boundary Fault hundreds of millions of years ago.

Later, over coffee, the conversation broadens: what exactly is a fault? Why do they matter? And how do they shape the ground — and lives — above them?

🪨 Themes: Geological time, fault lines, plate tectonics, earthquakes, the making of Scotland

🎙️ Guest: Keith Torrance, geologist and local expert

📍 Location: Innellan, Firth of Clyde

📚 Further Reading:

– BGS Geological Map Viewer: https://mapapps.bgs.ac.uk/geologyofbritain/home.html

– Scottish Geology Trust – Highland Boundary Fault overview: https://www.scottishgeologytrust.org

Start the journey where the land begins to shift — and discover what lies beneath the surface.

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