Harris Tweed standard definition became essential. Groups of merchants in both Lewis and Harris applied to the Board of Trade for a registered trade mark. When this trade mark, the Orb, was eventually granted, the Board insisted that it should be granted to all the islands of the Outer Hebrides i.e. to Lewis, North and South Uist, Benbecula and Barra, as well as to Harris, the rationale for this decision being that the tweed was made in exactly the same way in all those islands. In 1909, after much negotiation and a degree of acrimony from merchants in Harris who felt that
Lewis and Harris comparatively flat, save in the south-east, where Ben More reaches , and in the south-west, where is the highest point. Lewis contains the deepest lake on any offshore island in the British Isles, Loch Suaineabhal, which has a maximum depth of 66.7m (226 feet) and an overall mean depth of 32m (108 feet). Until 1975, Lewis belonged to the county of Ross and Cromarty and Harris to Inverness-shire. The entire island group is now administered by , the Western Isles Council. Other nearby inhabited islands in the Lewis and Harris group are (Great Bernera) and (Scalpay). (Taransay) and (Scarp), now