sentences:  The large fur companies also built posts, including the North West Company's stations at Pembina and St. Joseph in the valley of the Red River.The paths between these posts became parts of the first of the Red River Trails.In 1815, 1822, and 1823, cattle were herded to the Red River Colony from Missouri by a route up the Des Moines River Valley to the Minnesota River, across the divide, then down the Red River to the Selkirk settlement.