Best guidebook I have ever read
Robert D. Rice, Maine, 5-star Amazon review, May 15, 2018
Best guidebook I have ever read. No ambiguities, the descriptions and directions are very detailed. So many options available at every location I wish I had time to do it all. I love the focus on geology and I will enter Yellowstone almost like an old hand having studied this amazing book. I wish Janet would write about all the National Parks.