Overview
Inverness-shire is a historic county, registration county and lieutenancy area of Scotland (the latter of which though only goes by the name Inverness). Covering much of the Highlands and Outer Hebrides, it is Scotland's largest county, though one of the smallest in population, with 67,733 people or 1.34% of the Scottish population.
Definition
The extent of the lieutenancy area was defined in 1975 as covering the districts of Inverness, Badenoch & Strathspey, and Lochaber. Thus it differs from the county in that it includes parts of what was once Moray and Argyll but does not include any of the Outer Hebrides which were given their own lieutenancy area — the Western Isles.
Geography
Inverness-shire is Scotland's largest county and the second largest in the UK as a whole after Yorkshire. It borders Ross-shire to the north, Nairnshire, Moray, Banffshire and Aberdeenshire to the east, and Perthshire and Argyllshire to the south.
From Wikipedia (CC BY-SA 4.0).