The Wapsipinicon River (/wɒpsɪ’pɪnɪkɒn, -kən/, locally known as the Wapsi) is a tributary of the Mississippi River, approximately 300 miles (480 km) long, starting near the southeastern border of Minnesota and running through northeastern Iowa in the United States. It drains a rural farming region of rolling hills and bluffs north of Waterloo and Cedar Rapids.
The Wapsipinicon is known for excellent fishing for catfish, although it also contains abundant northern pike, carp, sunfish, and walleye (in some areas).
