As I recall, the sites in Watchman loop A RV and/or tend, and and loop B is all
RV. All have electric. The sites in loop C are not electric and are tent only. South campground has sites for both RV and tent and I don't believe there are hookups there. The website has some pretty good info: https://www.nps.gov/zion/planyourvisit/watchman-campground.htm. You may also want to call the at (435) 772-3256.