This place is a free campground. There is only one water source near the dump, so it is not safe to have both potable water and rinse water from the same source. However, there is rinse water available, but it is not safe to drink. To get to this RV dump station, take I-25 Exit 140 and follow Yellowstone Hwy. East for 1.1 miles. Then, turn left onto Grant Street.