Establishing and documenting the boulder problems in this guidebook was a daunting task. City of rocks is a never ending maze and even with today’s technology it was difficult. Also; due to a laptop power failure in the field, while backing-up my book files my computer died. I lost the entire book and had to start from scratch. In the end all my hard work was worth it to me. Not forgetting to mention I had the opportunity to climb some spectacular boulder problems. So far, this was my favorite guide to write.