The Clach an Tiompain (in English, the "Sounding Stone") or The Eagle Stone is a small Class I Pictish stone located near the northern entrance of Strathpeffer.
The stone is made of blue gneiss and is 32 inches (81 cm) high, 24 inches (61 cm) wide, and 10 inches (25 cm) thick. Carved on the southeast side are two images - a horse shoe-like arc symbol above an eagle.
The stone was originally located further down the hill, towards Dingwall, but was moved to its current site in 1411. One old tradition is that the stone marks the site of a Scottish clan battle that took place in 1411 between the Clan Munro and a branch of the Clan MacDonald, and that the stone commemorates a Munro victory as it is marked with their symbol, an eagle.
The stone is associated with the prophecies of the 16th century Brahan Seer. He predicted that if the stone fell three times, the surrounding valley would be flooded, and the stone used as an anchor.
See Archeological Trail App or leaflet (available from the Tourist Information Point) for more information.