If I was not already going to Yosemite, I would have bought a ticket instantly. John Muir is probably one of the most detailed and descriptive writers I've seen yet. He describes every aspect of Yosemite from the famous domes and waterfalls to the types of trees and wildlife you would encounter. He also includes excursions to take depending on the amount of time you have to explore the park. Even though this book is almost 100 years old, most of the scenery has not changed, nor have the names. One of the best parts of the book are the pictures and the map from the early 1900s. It makes you want to go climb a mountain and camp underneath the stars. Even if you've never been, I highly recommend you read this and plan a trip there soon.