Lewis and Harris MacLeod, and those on Lewis being referred to as from the clan MacLeod of Lewis. Lewis is also the ancestral home of Clan Morrison. The Lewis chessmen is a famous collection of 12th-century chess pieces, carved from walrus ivory and mostly in the form of human figures, which were discovered in Uig in 1831. A major industry on the island is the production of Harris tweed fabric, which is handmade on the island; by law only fabric produced in the Outer Hebrides can be called Harris tweed. The Lewis Trilogy of novels ("The Blackhouse", "The Lewis Man" and "The Chessmen")
Isle of Lewis Stornoway. Aside from the village of Achmore in the centre of the island, all settlements are on the coast. Compared with Harris, Lewis is relatively flat, except in the south-west, where Mealisval, , is the highest point, and in the south-east, where Beinn Mhor reaches ; but there are 16 high points exceeding in height. Southern Lewis also has a large number of freshwater lochs compared to the north of the island. South Lewis, Harris and North Uist together comprise a National Scenic Area. There are four geographical Sites of Special Scientific Interest (SSSI) on Lewis – Glen Valtos, Cnoc