 The Minnesota River flows southeast from the lake, along the county's southwestern border, while the Chippewa River flows south through the western part of the county to discharge into the Minnesota at the county's southern border.The Dry Weather Creek drains the west-central part of the county into the Chippewa, while the Palmer Creek drains the lower central part of the county into the Minnesota near the county's southernmost point.The county terrain consists of low rolling hills, devoted to agriculture.