I recently received Riches from the Earth: A Geologic Tour of the Dalton Highway, Alaska and have thoroughly enjoyed it. I had already made the drive with another geologist who is familiar with the area, but the book provided additional information that, even after the fact, was welcome. It is well written and the photosgraphs are truly representative of the sights to be seen along the road. Written quite a few years ago, much of the information is still timely, although the road has improved slightly in recent years. For anyone planning to make this challenging drive, either to learn about the roadside geology or even just for the experience of driving this road north to the Prudhoe Bay area, this book is highly recommended!