The Crawfish River is a tributary located in south-central Wisconsin. It flows through several counties, including Dodge County and Jefferson County, before eventually joining the Rock River. The river is approximately 50 miles long and is known for its scenic beauty and recreational opportunities. The Crawfish River supports various wildlife and is popular for activities such as fishing, kayaking, and canoeing. Its watershed includes several wetlands and natural habitats, making it an important ecological area. The river also plays a role in local agriculture and water management in the region.