Peaceful Campground
This is a great place to stop and spend the night after viewing Monument Valley. The family that owns the grounds is very friendly. They have some friendly dogs that just might walk with you on their trail to the overlook. Also, highly recommend the Navajo Taco dinner they offer.
Easy Stop
This is a great place to pull over and sleep if you are car camping. Great views of Vermilion Cliffs. Not much traffic in late February, so relatively quiet.
Open During Winter Storm
We used this spot to pull off and sleep just north of Flagstaff. The roads were clear and easy to traverse.