Fantasy Canyon is the Unitah Basin. It’s BLM land so there is real marked trail. The history is found as a geographically old spot. Here’s the history here. It’s easy to get there map quest and Google has it on there. It’s beautiful there but limited shade so go when it’s cooler. There is a bathroom and picnic benches near the parking. Some older lore is that fantasy Canyon is a place where evil spirits were captured. You can tell that the rock at one point in time long ago was coral. There are many shapes to see like the witch.
