Laura and I took the sunrise tour of Monument Valley with Sheryl. We recommend it. From our view at The View hotel (also recommended), we could see that the tours during the day are crowded. On our sunrise tour in late September, we were the only people on the tour. Sheryl grew up in the area and was able to tell us anecdotes from her grandparents, who also grew up in the area. It was great.
-Larua & Marc