Yahara River

The Yahara River is a tributary of the Rock River in southern Wisconsin. It is about 62 miles (100 km) long (including the distance across intervening lakes), and drains an area of 536 square miles (1,390 km2). Via the Rock River, it is part of the watershed of the Mississippi River.

The Yahara River links the lakes around which the city of Madison was built.

The river begins in Windsor in northern Dane County and flows for a short distance in the town of Leeds in Columbia County, then returns to Dane County and flows southward through the villages of DeForest and Windsor, and the towns of Burke and Westport into Lake Mendota in the city of Madison.

Downstream from Lake Mendota, the river is channelized through the Madison Isthmus southeastward, and flows through Lake Monona, Lake Waubesa and Lake Kegonsa, passing through the city of Monona, the village of McFarland, the towns of Dunn and Pleasant Springs, the city of Stoughton and the town of Dunkirk (including the unincorporated community of Dunkirk) in Dane County; and the towns of Porter (including the unincorporated community of Stebbinsville) and Fulton (including the unincorporated community of Fulton) in northern Rock County. It joins the Rock River in the town of Fulton, approximately 9 miles (14 km) northwest of Janesville.