River Sgitheach

It rises on the southern slopes of Ben Wyvis, passes through Strath Sgitheach, passing Clare plantation, Swordale, the village of Evanton, and after about 13 miles (21 km) empties into the Cromarty Firth near the ruin of the old Kiltearn parish church.

About a mile to the northeast, on the other side of Balconie Point, the Allt Graad also empties in the Firth.

The ruin that lies on the beach between the two rivers is an old salmon fishing bothy of the Novar Estate.

During the summer the water level falls but the river remains an obstacle and even at traditional fords it is difficulty to get across with dry feet.

The river was formerly anglicised as either "Skiach" or "Skiack", but the Gaelic spelling is used by the Ordnance Survey name and that of Highland Council.