Saskatchewan River fur trade The Saskatchewan River was one of the two main axes of Canadian expansion west of Lake Winnipeg. The other and more important one was northwest to the Athabasca Country. For background see Canadian canoe routes (early). The main trade route followed the North Saskatchewan River and Saskatchewan River, which were just south of the forested beaver country. The South Saskatchewan River was a prairie river with few furs. Overview The Saskatchewan River was a natural highway for furs going east and trade goods going west. The forests to the north provided beaver pelts. The grassland to the south provided buffalo for food and pemmican to feed to voyageurs in the food-poor country to the north. Pemmican was often more important than beaver. Most was sent downriver to Cumberland House, Saskatchewan, before being sent northward, but from 1790 some was sent via a relatively short overland route to the Green Lake, Saskatchewan and on to the Athabasca Country. The Saskatchewan has no significant portages between the rapids at Rocky Mountain House and its mouth at Lake Winnipeg. Eastbound canoes with that winter's catch had the advantage of the spring meltwater. Westbound trade goods in the summer and fall had to deal with low water and there was significant use of poling and tracking on the upper river. The Hudson's Bay Company built the first proto-York boat on the river at Manchester House in 1788, but the North West Company seems to have preferred north canoes. In the La Montee country west of Prince Albert, "bosses" would borrow horses and go buffalo hunting to feed the regular voyageurs who had to stay in their canoes and continue rowing upstream. When speed was required one could ride horseback parallel to the river. Around 1825 a horse track was cut from Fort Assiniboine, Alberta on the Athabasca River to Edmonton. (The easiest route from the Pacific was through Athabasca Pass to the Athabasca River. The shortcut meant a straighter route and the use of York boats. The Athabasca River route was indirect and required smaller north canoes for the numerous portages.) From the 1870s the slaughter of buffalo, smallpox and the appearance of settlers disrupted Native life. In 1876 an ox-cart road was built from Fort Carlton north to Green Lake. In the mid-1800s, The Carlton Trail, running along the north bank of the Saskatchewan River, was gradually developed connecting