Wonderful images, Dave. You certainly received the gift of light on these. #3 is my top choice. I love how the shape of the trees along side of the rock formations provide a companion like relationship.
How hot was it when you were there in the summer? Did you need to do much hiking to get to these locales?
Ed - I was there only a couple of days the 3rd week in August. The weather was mostly stormy with mornings in 40-50's and afternoon in 60's. There are some nice trails among the hoo-doos but those shots were park and shoot!
#2 but of course, even if one may have seen it hundreds of times.