Route: Rock Creek Multi Use Trail (IA)

The path is all double-track and mostly grass. If you find yourself on a skinny single-track trail you are not on the main trail. The route follows pretty close to the lake until the northwest part but later comes back close to the lake when the trail ends and the road begins. follow the road out of the park, over the bridge, and back into the park then go up to the bait shop and veer left into the campground, and follow the roads headed straight south until you find a short gravel road that leads to a gazebo. turn left through the grass to the road then follow the road to the fork and take the right. Then follow the road back to where you started.

State park website