Yep, Dallas Divide! It's almost my home away from home. In the fall, there can be 50 to 60 people gathered daily there, parking can be a bit hard to find, or an open space to set a tripod.
But the funny thing is, go there in the Winter, Spring or Summer which I think is just as beautiful, just different. And there won't be anyone else there at all except for the traveler who stops occasionally in the pull out, takes a photo or two and jumps back onto the highway.