What is the International Appalachian Trail?
Discovering the International Appalachian Trail (IAT) in England?
A friend of mine is currently trekking across some of England’s legendary long-distance footpaths—think the Pennine Way, South West Coast Path, and Hadrian’s Wall Path. He’s logging some serious miles, and along the way, he came across signs marked IAT – International Appalachian Trail.
Wait… what?
I knew the Appalachian Trail stretched from Georgia to Maine in the U.S., but what in the world was it doing in Yorkshire or along the Cornish coast?
So, naturally, I had to look into it—and it turns out, the IAT is way bigger (and cooler) than I realized.
So, What Is the International Appalachian Trail?
At its core, the IAT is a long-distance hiking network that extends the spirit and geological story of the Appalachian Mountains beyond North America. The original Appalachian Trail runs from Springer Mountain, Georgia to Mount Katahdin, Maine, and most people stop there.
But geologists know the story doesn’t end in Maine.
Millions of years ago, when the continents were all joined together as Pangaea, the Appalachians were connected to mountain ranges in Europe and North Africa. So when the land split apart, chunks of the same ancient mountain range ended up in Canada, Greenland, Iceland, the British Isles, Spain, Portugal, Morocco, and more.
Enter the IAT: a trail network that follows this prehistoric connection by linking existing trails across these regions under a shared name and mission.
Where Can You Hike the IAT?
If you’re a trail geek (or even just trail-curious), the IAT offers an exciting international twist on long-distance hiking. Here are a few notable segments:
United States (Appalachian Trail): From Georgia to Maine, this is the classic, 2,190+ mile American original.
Canada: The IAT continues through New Brunswick, Quebec, Newfoundland, and even Nova Scotia, adding wild coastal terrain and remote beauty to the mix.
Greenland and Iceland: Wild, stark, and beautiful—perfect for adventurous trekkers.
Scotland & Northern Ireland: These segments link up existing walks like the Moyle Way and Ulster Way.
England & Wales: Where my friend spotted the signs! Some English and Welsh trails are now officially part of the IAT—including parts of the South West Coast Path, Offa’s Dyke Path, and others.
Spain, Portugal, and Morocco: That’s right—it stretches across three continents. The IAT includes trails in the Galician mountains of Spain, Portugal’s Geopark Naturtejo, and Morocco’s Anti-Atlas Mountains.
The cool thing? You don’t have to hike the entire thing (obviously). Just pick a region and start walking. Whether you’re on the coast of Maine or the cliffs of Cornwall, you’re still walking the ancient Appalachian Trail.
Why It Matters (Besides Bragging Rights)
The International Appalachian Trail is more than just a massive hiking network—it’s a reminder of how connected our world really is, both geologically and culturally.
It also:
Promotes sustainable tourism in some of the world’s most stunning (and often under-appreciated) regions.
Encourages cross-border collaboration between trail associations and conservation groups.
Invites hikers to think globally while walking locally.
And, let’s be honest, it’s kind of thrilling to tell people, “Oh yeah, I hiked the Appalachian Trail… in Iceland.”
Final Thoughts About Worldwide Appalachian Trail
The next time you’re hiking a trail in Europe or even Northern Africa and spot that IAT badge, don’t be surprised—it’s just the Appalachian Trail reminding us that it’s much older, broader, and more epic than most people think.
And if you’re planning your next walking holiday, why not tackle a section of the IAT? You could literally be walking across the same ancient mountains that run beneath the soil of five countries and three continents.