Esquimalt Royal Naval Dockyard was a major Royal Navy yard on Canada's Pacific coast from 1842 to 1905. The naval dockyard was located in Esquimalt, British Columbia, adjacent to Esquimalt Harbour and the city of Victoria, to replace a base in Valparaíso, Chile as the home of the Royal Navy's Pacific Station and was the only Royal Navy base in western North America. In 1848 HMS Constance arrived at Esquimalt and became the first Royal Navy vessel based there. She was commanded by Captain George William Courtenay, after whom Courtenay, British Columbia is named.