Hudson's Bay Co. fort on upper waters of Assiniboine river, near confluence of Whitesand river (51°47'N.) west of headwaters of Swan river. Built 1790 and was the first Hudson's Bay Co. fort on the Assiniboine. Known as Carlton House and sometimes Fort Assiniboine. It is shown on map of Assiniboia 1811 (No. 38) also on map of Harmon's Journal (No. 2) and Arrowsmith 1801 (No. 4). A North West Co. fort called Marlboro House was in the immediate neighborhood. In 1856-7 a new fort was built by Hon. W.J. Christie of Hudson's Bay Co. a short distance below Fort Carlton and the name was permanently changed from Fort Carlton to Fort Pelly. The old fort had stood on lower land about 500 yards distant where a low sandy ridge rises 6 feet above the general level of the valley bottom. Fort Pelly was situated on rising sandy ground on the east side of the river. It was a large well-built fort protected by a high fence or wall of sawn planks. Over the heavy gate in front was a stout bastion from the top of which a magnificent view of surrounding country was seen. It was a compact, well-ordered post, on route from Fort Garry to Fort Carlton on the Saskatchewan. Sheltered on north by woods, with the Assiniboine river in front. For many years after 1806, Fort Pelly was one of the main trading posts of the Hudson's Bay Co. Boats from 3 to 4 tons burden annually descended the Swan river carrying furs to York Factory, the proximity of which enabled the Company to trade goods among the Indians a month earlier than the North West Co. whose goods were transported from Montreal to Fort William and thence distributed. A short portage led from Fort Pelly to the Swan river. This fort was operated by the Hudson's Bay Co. for over 100 years, until about 1900. Location shown on Johnston map 1894 (No. 37) & Arrowsmith 1832 (No. 101).