Desert Solitaire: A Season in the Wilderness is by Edward Abbey. Abbey, a naturalist and conservationist, spent some time as a park ranger in Arches National Monument in southeastern Utah. This book is a series of vignettes about his time in the park. His love for the desert is clear, as are his sometimes harsh attitudes regarding other aspects of humanity and American culture. I think describing this book as a Southwestern Walden is a fair comparison. It wonderfully describes the harsh and unforgiving beauty of the desert Southwest.
Ratings: 11th grade - 8 out of 10 - P (profanity) - AC (some mature thematic content).