I have to wonder if all of the talk about snakes is exagerated. My son and I hiked the summit on Aug 2nd, and saw no sign of snakes. We left the $20 in the pickup, and saw no other human during the hike. It was suprising beautiful on top with a great view. I would caution others to watch the weather. While it was beautiful on our trip, there were a couple of steep, baren sections that would be really tough with water cascading down them.
http://www.cydonian-tech.com/Highpoints/ND/index.htm