To find the RV dump station, take Exit 19 on I-35. Then, drive 9 miles East on Hwy. 160 until you reach the only service station in town. From there, go 2 blocks South on Iowa Street. After that, turn 1 block West on Vine Street. Make sure to go 2 blocks South, even though there is a park sign at one block South. You will come around all the way through the park. Look for a sign and a standing hydrant on the West side of the dirt road through the park. The dump pipe may be hard to see at night, but it is there.