The Ledge is a Road There are several places like this in Teapot Canyon, where the road basically is on a solid ledge of sandstone. Usually these ledge sections converge in on small drainages, which is where the really rough stuff is.
This image is from the presentation "An aMAZEing Trip to Color Country - The Maze, Escalante, and Zion - Flint Road and Teapot Canyon Jeeping".