Sithean Mor is a Graham of 601.5 m in Highland. Its closest neighbour in this register, An Stac (Highland, NM763792), is 8.0 km away.
All four of its nearest neighbours are higher, up to Rois-Bheinn at 882.4 m. It sits below An Stac (Highland, NM763792), only 8.0 km to the south-east and 213.1 m higher. Only one of the 737 hills profiled in Scotland is lower. It is the lowest of the 18 register hills in the Mallaig to Fort William region, where Gulvain is highest. The higher hill nearest to it, An Stac, is a Corbett, 8.0 km to the south-east. It is 264.2 m below the average height of the 427 register hills in Highland. Its other name is Sidhean Mor. The database describes the top as a large rock 10m w of large cairn.