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 ne…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. The mountain's popularity amongst walkers led to erosion on its footpath and extensive repairs were undertaken in 2001.