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Some visitor centres are open – check individual web pages for more information. Our trails, toilets and car parks remain open. Plan ahead and enjoy your visit safely.

Castle O’er

Where we are

COVID-19 update

Some FLS visitor centres are offering a reduced service, with walking and mountain bike trails remaining open, as are most toilets and car parks. Please check below for local updates on any closures.

We want to ensure your visit is an enjoyable and safe one.

Make sure you follow the Scottish Government’s FACTS advice – helping to protect yourself, your family and your local community, and follow the Scottish Outdoor Access Code helping to keep Scotland beautiful.

Explore this spectacular pehistoric settlement

It’s worth visiting this dramatic hill fort at any time of year to soak in the atmosphere.

Castle O’er was probably the base for an important branch of the Selgovae tribe, who ruled much of south west Scotland in the Iron Age. Archaeologists have identified the traces of nearly thirty round timber houses inside the grassy banks: when folk lived here the bank would have been topped with a wooden fence. There were at least two major phases of building at Castle O’er. At first, people built a large oval of twin ramparts and a ditch bank around the hill. Later a smaller, single-walled oval was added inside the first.

The site was probably planned as a place that would be easy to defend against attackers, but it looks as if people continued living on the hill long after it stopped being a fortress. They would have farmed livestock and crops in the rich open grasslands of the valley. Richard Bell, the local landowner, excavated part of Castle O’er in the 1890s. You can see some of the things he found in Dumfries Museum, including beads imported from Ireland, a flint blade, and Iron Age spindle whorls for spinning wool.

You can find out more about the network of prehistoric sites in Eskdale along the Eskdale Prehistoric Trail.

Southern Uplands Guide Map (PDF 3.8MB)

Walking trails


Hill Fort Trail

Climb up to the impressive hill fort on Castle O’er Hill for fantastic views across Eskdale.

Long steep slopes on rough, narrow and grassy surface. Some sections may be muddy. Includes two stiles. There are no waymarkers on the fort itself to protect the monument.

Strenuous trail grade icon
1 miles / 1.6 km

¾ hours

More information

These earthworks were the home of the Iron Age Selgovae tribe. When you reach the top of the hill, see if you can spot the circular traces of the wooden huts that once stood here. They look as if they’re arranged in a street, but some overlap others. They must date from several different periods, as the hill was occupied for a long time.

Facilities & access

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Find nearby essentials

The nearest places to eat and find toilets are in Langholm or Lockerbie.

Getting here

Head towards Eskdalemuir from Lockerbie, Langholm or Hawick. Castle O’er is on a minor road off the B709 between Eskdalemuir and Langholm.

Using SatNav?

DG13 0PJ is the nearest postcode.

Get directions

Get in touch

Have a question or suggestion for improvement?

0300 067 6900 (option 1)
More contact information

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