Hennepin Canal Parkway State Park - 104.5-mile linear park which spans five counties (Rock Island, Bureau, Henry, Lee and Whiteside). Activities include picnicking, hiking, fishing, bicycling, boating, hunting, horseback riding, and winter sports. The park has the longest snowmobile trail
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http://dnr.state.il.us/lands/landmgt/parks/r1/hennpin.htm