The Outer Hebrides or Western Isles, sometimes known as the Long Isle or Long Island, is an island chain off the west coast of mainland Scotland. The islands are geographically coextensive with Comhairle nan Eilean Siar, one of the 32 unitary council areas of Scotland. They form part of the archipelago of the Hebrides, separated from the Scottish mainland and from the Inner Hebrides by the waters of the Minch, the Little Minch, and the Sea of the Hebrides.

The Butt of Lewis is the most northerly point of Lewis in the Outer Hebrides. The headland, which lies in the North Atlantic, is frequently battered by heavy swells and storms and is marked by the Butt of Lewis Lighthouse. The nearest populated area is the village of Eoropie, about 1 mile to the south.