The Cariboo Road (also called the Cariboo Wagon Road, the Great North Road or the Queen's Highway) was a project initiated in 1860 by the Governor of the Colony of British Columbia, James Douglas. It involved a feat of engineering stretching from Fort Yale to Barkerville, B.C. through extremely hazardous canyon territory in the Interior of British Columbia. Between the 1860s and the 1880s the Cariboo Road existed in three versions as a surveyed and constructed wagon-road route. The first Cariboo Wagon Road surveyed in 1861 and built in 1862 followed the original Hudson's Bay Company's Harrison Trail (Port Douglas) route from Lillooet to Clinton, 70 Mile House, 100 Mile House, Lac La Hache, 150 Mile House to the contract end around Soda Creek and Alexandria at the doorstep of the Cariboo Gold Fields. The second Cariboo Wagon Road (or Yale Cariboo Road) operated during the period of the fast stage-coaches and freight-wagon companies headquartered in Yale: 1865 to 1885. From the water landing at Yale, the road ran north via the spectacular Fraser Canyon route over Hell's Gate and Jackass Mountain, connecting to the earlier Cariboo Road at Clinton. The third Cariboo Road was the revised route following the completion of the Canadian Pacific Railway in 1885. The railway station at Ashcroft became the southern end of the wagon road. Much of the Fraser Canyon wagon road was destroyed by the railway construction as well as by washouts and by the Great Flood of 1894 (interest in rebuilding this portion of the road would not occur until the construction plans for the Fraser Canyon Highway for automobiles in the 1920s). The road was a reaction to the high concentration of gold in the Cariboo region and the dangerous "mule trail", which was a rough-hewn cliff-side trail - wide enough only for one mule - that ran along the approximate route of the Cariboo Road. In order to lower supply-costs to the settlers in the Cariboo region, Douglas ordered the construction of a more viable and safe form of transportation to the gold-mining settlements. The colonial government employed locals as well as a detachment of the Royal Engineers ("sappers") who undertook amazing engineering feats, including the construction of toll bridges including the (original) Alexandra Suspension Bridge of 1863. Building the road cost nearly one and a quarter million dollars, and left a standing debt of £112,780 after its completion, one