No. The origin of the (Bois) Brule River is slightly north of Upper
St. Croix Lake. From that point, the Brule River flows northward to Lake
Superior.
The Eau Claire River flows into the the St. Croix River slightly east of
the Gordon Flowage at Gordon.
The Namekagon River flows into the St. Croix River downstream from the
Gordon Flowage, near Danbury.