The East Branch Pecatonica River is a tributary of the Pecatonica River, approximately 62.5 miles (100.6 km) long, in southwest Wisconsin in the United States.
It rises in the hills of eastern Iowa County, approximately 2 miles (3 km) north of Barneveld and approximately 25 miles (40 km) west of Madison. It flows south past Barneveld, Blanchardville, and Argyle, and joins the Pecatonica in southeast Lafayette County, approximately 5 miles (8 km) north of the state line with Illinois.
References
East Branch Pecatonica River Wikipedia(Text) CC BY-SA