Assertion: mussel | /r/AtLocation | four rivers
Facets:
value: in the midwestern united states
type: LOCATION
Source sentences:
text: Today however, the mussel can only be found in four rivers in the Midwestern United States, and only found in limited areas of those four rivers: in a five-mile stretch of the St. Croix River, which flows between the states of Minnesota and Wisconsin; In Arkansas it can be found in the Ouachita River and also the Saline River, and some populations have been located in the Bourbeuse River in Missouri.