Longformacus (Scottish Gaelic: Longphort Mhacais) is a small village in Berwickshire in the Scottish Borders area of Scotland. It is around 10 kilometres (6.2 mi) north-west of Duns, in the Lammermuir Hills. The Dye Water runs through the village, flowing east towards its confluence with the Whiteadder Water nearby.
In the vicinity are traces of an ancient fortification at Runklie or Wrinklaw and the Mutiny Stones cairn.
The opera Lucia di Lammermoor, written by Gaetano Donizetti and based on Sir Walter Scott's The Bride of Lammermoor, was set in the Lammermuirs and an old form of the village's name, Lockermachus, is mentioned in Scott's novel.
The Southern Upland Way, a Long Distance Route which crosses southern Scotland, passes through the village, and the Sir Walter Scott Way from Moffat to Cockburnspath passes through Longformacus.
Distance between:
London to Longformacus314 Miles / 505 Kms Liverpool to Longformacus168 Miles / 270 Kms
55.808485,-2.49332