I'm not sharing this image because it's a stellar photograph. Rather, I want to impart some knowledge from my perspective and experience as a resident photographer in Moab. I hope some of you find it useful.
I made this image 24 minutes after sunset. As you can see, the sandstone fins have a rather lovely glow to them. Here in Canyon Country, it isn't uncommon to witness this 20-30 minutes before sunrise and 20-30 minutes after sunset. It doesn't last long and you've got to be set up and ready to go or you'll probably miss it. I've actually seen similar light in the mountains but it seems more prominent in the desert. I regularly see photographers pack up their gear the very moment the sun has set. Don't! Stay put for a while and you might just be rewarded with some pretty amazing glow light. I enjoy working with this light for a number of reasons. Obviously, it's quite a lovely light but it's also fairly low contrast, often allowing you to record the entire dynamic range of the scene in one exposure.
Good luck on your next trip to Canyon Country!