Mill Creek Park Campground

I stopped here for only one night in December, so it wasn't a disaster. To begin, it was already dark when I approached the area. Google Maps took me past the small, unlit sign for the turnoff to the park and campground. It's already a dirt road at this point and was pretty soft and sandy. At least I was in my truck (no trailer) and could turn around easily. The narrow road to the camping area was the same mushy surface. I didn't use any power and cannot comment on the quality of the electric service. The sites where I stayed had a dirt/grass surface and would likely require some leveling your RV.

When I visited the restroom, I found it unkempt. Most of the overhead lights were either not working and one was an annoying, flashing strobe. The trash can was overflowing. The worst is the quality of the water - it's saturated with iron. It stains the toilets orange and after taking a quick shower, both my skin and towel/washcloth reeked of iron. I could smell it strongly for the remainder of the day.

The Verizon signal was very weak, but finding your way back to the main highway isn't too complicated. The campground is also very secluded, which may suit many people. I also think it would be an acceptable place to stay in spring or fall, but due to the nearby water may be both muggy and buggy in summer.

It's unlikely that I would stay in this campground again.

Nice enough campground. Very quiet and peaceful.
We are 1 of 2 campers, so quiet and remote.
But do be warned that even though most of the pedestals have 30-amp outlets, many of the circuit breakers are 20-amp breakers.
Just a cautionary note.
We would still come back here. It seems like a nice campground, especially if you like the more remote feel.
Both AT&T and Verizon signals were weak. We set up our cell booster and that helped significantly.

Nice little county park. I called the day before for a reservation. The lady I talked to said I wouldn’t need one. She was right. It was almost empty when I got there the following afternoon. Water and electric on the pedestal. No sewer hookup, but there is a dump station across from the restrooms. The ranger came by and collected my $10 after I was there for a while. Shaw Air Force Base isn’t far away and they spent some time bombing things on the practice range in the evening. Kinda cool.

We stayed here in a 32 foot motorhome. The campground was very quiet and not many campers this time of year. The campground is popular with horse owners as there are many trails to ride. We had water and 50 amp service here. Found the campground through Campendium and had to call for help to book a site. The website booking is not very user friendly and when you do get into the reservation system you can only book for one night. The kind lady that walked me through the reservation process said you just pay the park ranger for however many more nights you wanted. He was very nice also. A bad storm rolled through and we did lose power for about 30 hours, but that is not the campgrounds fault. We would definitely stay here again. We visited Congaree NP from here and wanted to tour a plantation, but it was closed due to Covid. It was also very easy to level our rig. Roads were a little narrow and sandy, but we had no issues.

Only $10 for 30A or $15 for 50A in Oct 2021. The layout is a little weird and the bathrooms smell but there are warm showers. Helpful, friendly staff.
The website booking is impossible. Literally impossible on mobile, even with Desktop mode enabled. On a laptop, you have to click a certain order to view campsites, and then only 50A and horse spots show up.
Reserve in-person and hope for the best. The park # is 803-436-2248 and they can provide the caretaker's phone # for availability info.