sentences:  Shorter than the competing West Plain Trail, it became the route of the large cart trains originating from Pembina when well-known trader Henry Sibley retired from the fur trade in 1854.His successor and former partner Norman Kittson moved their company's cart trains from the West Plains Trail in the Minnesota River valley to the East Plains route.The East Plains Trail followed the older routes of the West Plains Trail from Pembina to Breckenridge, Minnesota, then struck east by a variety of routes out of the Red River Valley across the upper valleys of the Pomme de Terre and Chippewa Rivers (tributaries of the Minnesota River), to Saint Cloud and Sauk Rapids on the Upper Mississippi.