Sentence:  Others carried pemmican from `` the Forks '' to St. Paul and goods from St. Paul to <WSD>Red</WSD> River , as in the summer of 1847 when one trader , Wells , transported twenty barrels of whisky to the British settlement . 
Meaning of the word marked with <WSD> tags:  a tributary of the Mississippi River that flows eastward from Texas along the southern boundary of Oklahoma and through Louisiana