Rannoch Moor in the context of "Lochaber"

Caledonia (/ˌkælɪˈdoʊniə/; Latin: Calēdonia [kaleːˈdonia]) was the Latin name used by the Roman Empire to refer to the forested region in the central and western Scottish Highlands, particularly stretching through parts of what are now Lochaber, Badenoch, Strathspey, and possibly as far south as Rannoch Moor, known as Coed Celedon (Coed Celyddon using the modern alphabet) to the native Brython (Britons). Today, it is used as a romantic or poetic name for all of Scotland. During the Roman Empire's occupation of Britain, the area they called Caledonia was physically separated from the rest of the island by the Antonine Wall. It remained outside the administration of Roman Britain.

Latin historians, including Tacitus and Cassius Dio, referred to the territory north of the River Forth as "Caledonia", and described it as inhabited by the Maeatae and the Caledonians (Latin: Caledonii).

Perthshire or the County of Perth, is a historic county and registration county in central Scotland.

Geographically Perthshire extends from Strathmore in the east, to the Pass of Drumochter in the north, Rannoch Moor and Ben Lui in the west, and Aberfoyle in the south; it borders the counties of Inverness-shire and Aberdeenshire to the north, Angus to the east, Fife, Kinross-shire, Clackmannanshire, Stirlingshire and Dunbartonshire to the south and Argyllshire to the west.