By 1846, the Columbia District proper had been more than halved and the name had fallen into relative disuse, until revived when the new Mainland Colony needed a name. The uncharted territory of the remainder of the Columbia District, including the remainder of the British coast north of Puget Sound, as far north as at least Queen Charlotte Strait (Fort Simpson and Fort McLoughlin were administered from Fort St. James, the capital of New Caledonia). After 1846 New Caledonia informally referred to the Fraser Canyon Gold Rush region in 1848 and farther north the Cariboo Gold Rush area during the 1860s. As also had included Fort Langley since as early as 1827.