The county touches Smithville Lake's north end

The southern edge of Clinton County reaches the upper end of Smithville Lake, the U.S. Army Corps of Engineers reservoir on the Little Platte River drainage north of Kansas City. As a Corps lake, its shoreline use, any docks, and its parks follow Corps rules rather than purely local ones, and the Corps’ Kansas City District manages it. The lake is built for flood control, water supply, and recreation, and it draws fishing, boating, and camping from across the north metro. For a property owner or visitor near the county’s south end, the practical point is that lakefront and shoreline questions go to the Corps, while fishing rules come from the Department of Conservation. Confirm jurisdiction and any shoreline permit with the Kansas City District before assuming local rules apply.