Schiehallion is a prominent cone-shaped mountain in the Breadalbane region of the Scottish Highlands, in the county of Perthshire. It rises to 1,083 metres and is classed as a Munro. Schiehallion has a rich flora, interesting folklore and archaeology, and a unique place in scientific history for an 18th-century experiment in "weighing the Earth". It is near the centre of mainland Scotland.