I don't pay much attention to hills with the TT as it's only 8k max and I tow with a diesel.
That said, I love to play on the RZR, and the Bryce canyon area is a great place to explore. They generally have a good assortment of maps available at the store there at Rubys, some of which are pretty good for ATV trails. You can ride right out of the Rubys Inn/Campground area and have a lot of great country to explore, limited mostly by how many miles you want to ride. I highly recommend looking in to riding the Casto canyon trail if you've got machines under 50 inches. It's got areas that are very similar to riding through Bryce canyon itself. Google Casto canyon, Bryce canyon country and similar searches and you'll find lots of good info on trails to ride. The area west of Tropic Reservoir can be very scenic as well and there are numerous dirt roads to explore there as well.
Make sure you get a map, take a GPS, and carry extra fuel as we generally ride well over 100 miles a day exploring down there, and Cell phones don't work in most of the more scenic areas.