Cahokia RV Parque is a nice RV park only 15 minutes from downtown St. Louis. We stayed two nights and really enjoyed the St. Louis area. I compared the park to two others near St. Louis on the Illinois side and found this one to be the most pleasant. Most of the sites are sunny, but some have shade. The park streets are asphalt, but the sites are gravel. The park is quiet. Gave it 4 stars for cleanliness due to the gravel sites. Otherwise, the park was clean. 

Stayed in campsite#34 which has plenty of shade. It was a gravel back-in site with enough parking for my TT and truck with plenty of grass on either side. The site included: picnic table on a concrete patio, fire ring, and small trees. Utilities were located closer to the front of the site: 20A/30A/50A electric water, sewer. Site was pretty level. Awning faced east so we didnt get the evening sun shining underneath, but a tree prevented me from opening the awning. It didnt matter because there was plenty of shade in the evening, but not much in the middle of the day. Nearest neighbor was close. 

AT&T had 2 bars of 5G and Verizon 3 bars of LTE service. AT&T Speedtest 49.7 Mbps down, 3.35 Mbps up. Could not access the WiFi even though the password was on the info sheet. 

Would stay here again.  We camped at Cahokia RV Parque in a Travel Trailer.