This old standard has some great history of the area. But if you try to find the Rock Rooms or many other hikes from this book you will get very lost. Many descriptions are dated and were not very helpful to start with. For one hike you're told to find a rock shaped like a seal on top of a mountain covered with hundreds of strange shaped rocks. Is it the whole seal or just a head? Big or little? Not much help I'm afraid. Get it for the history but get another book to hike with.