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Trimontium

SCT Scotland · 1st century

Trimontium in Scotland
Photo: Fingalo · CC BY-SA 2.0 de · Wikimedia Commons

Trimontium was a Roman fort complex located at Newstead, near Melrose, in the Scottish Borders, beneath the three Eildon Hills which almost certainly gave it its name (Latin: trium montium, three hills).

It was occupied intermittently from about 79 to 184 AD and was the largest of the "outpost" forts after the construction of Hadrian's Wall in the 120s AD. It was located 60 mi (100 km) north of the wall on the extension of Dere Street the main Roman route to the north, initially in seemingly "hostile" territory. Trimontium was about three times larger than any fort on Hadrian's Wall and by 180 became the most northerly settlement of the whole Roman Empire.

Trimontium is also considered of international importance as the site of one of the largest caches of Roman military objects in Britain, found in 117 pits.

It was identified by Roman geographer Ptolemy in his Geography.

The fort sits on the banks of the River Tweed, with the Eildon Hills and the Iron Age hillfort atop Eildon North, a visible reminder of both the local population and imposing landscape of the Scottish Borders. The location benefitted from the rivers Tweed and Leader providing routes for the movement of goods and people and from the Roman road that became Dere Street passing alongside the fort.

Text adapted from “Trimontium (Newstead)” on Wikipedia, CC BY-SA 4.0.

Trimontium ranks #3,296 of 7,044 worldwide in the atlas's castle fame ranking, and #112 of the 159 mapped in Scotland. Founded c. 50, it is older than 99% of the atlas's dated landmarks — one of 14 atlas entries founded in the 1st century. See how Scotland compares in the castle statistics.

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Read the full history on Wikipedia ↗

Frequently asked questions

Where is Trimontium?

Trimontium stands in Scotland, at 55.601°, -2.687°.

When was Trimontium built?

The atlas dates its founding to c. 50. Earlier structures may have stood on the site; this is the earliest documented founding year.

How famous is Trimontium?

In this atlas's fame ranking: #3,296 of 7,044 worldwide, and #112 in Scotland. Fame here combines how many Wikipedia language editions cover a landmark with how many people read them.

What is the nearest castle to Trimontium?

Smailholm Tower, about 7 km away.

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