This is one of the oddest and best out of print Sierra Club guidebooks available. Many of these trails in the Klamath Mountains have totally disappeared over the last 30years. I've hiked many of them in the book, they are wild, rough, and remote, and I know that if there is a place where Bigfoot still lives in the lower 48, it is somewhere within 50 miles of my house. This is the 40th year since the famous Bigfoot film on Bluff Creek.