Mid-way across MS on I-20 you’ll find a roadside advertisement for Roosevelt SP. It’s a really easy place to spend a night or two and has a lot of well maintained park amenities.
The back-in sites are all listed as being 40’. Our rig is 53’ when connected and we still had a little room to spare. Very few sites have access to dish type signals. However, we did get good reception from our “bat” antenna from stations in Jackson, MS.
The link is active.
https://mississippistateparks.reserv...&parkId=154848