There is a centrally located dump station in the park for all overnight campers, and there is no additional charge for using it. The dump station has two lanes, one for potable water and another for rinse water (which is non-potable). If you need potable water, it is available at the campsites. To get to the dump station, you need to go 12 miles East of Nogales on AZ 82 and then go 4 miles North on a gravel road.
