We followed the campground(CG) instructions versus our RV GPS as it wanted to take us down a country road no RV should go on. There was signage where to turn to get to this COE CG as you got close. As this was a Friday and based on our experience going to state parks/COEs at the end of the season when the weather is really nice, we went in early so we could get ahead of the weekend crowd. We were glad we did as after an easy check in at the gate, we proceeded to our loop to site 21 with 50/30 AMP and water. The loops here are a little tight and there are lots of trees so coming in late on a popular weekend could be challenging with trucks, cars, and boats parked about. Site 21 was a bit of a challenge backing our 39' 5th wheel into. There were lots of trees and a little bridge with big drop offs on either side of the road, but we got in without mishap after a few tries. As the afternoon progressed, the locals plus rookie RVers all swarmed in around the same time. We grabbed a beverage and watched the show. This was our first time staying at Piney Grove, but we had come to the area the last three years to get our 5th wheel serviced. The CG was completely full for the weekend. There are quite a few back-ins that would have been much easier. We suggest reading reviews on various websites to find which sites will better fit your rig. The pad lengths on the reservations website seemed to be accurate. In our opinion, the only pull through that would fit a 40’ 5th wheel was site 73. The rest of the pull throughs were the half moon shaped type with too sharp of internal turn and/or trees to deal with. A lot of the sites have some lake view. Sites here are closer together than other COEs we have stayed in. Cell service was spotty with both Verizon and AT&T having two bars. We could text but not receive phone calls(though we did see a few people talking on their phones) and often the internet wouldn’t connect or was too slow to be useful. There are internet hotspots in the CG but we could not get our phones to recognize and/or connect. You get a handful of OTA channels but no major networks. We had to chuckle when several campers here tried and tried to get their satellite dishes to connect. Unless you are maybe near the main road or boat ramp area, doubtful you would get a signal as there are too many trees.  There’s a gas station with a few convenience items as you turn toward the campground on County Rd 3501. Boonville is 20 or so minutes away with all the major amenities to include a Walmart. Tishomingo is closer going the opposite direction, but only has a Dollar General, small grocery store, and gas stations. We would stay here again, but definitely in a different site.