united states

This book is the best book on the subject... period! It lists EVERY campground in the USA that offers camping for 50% off. And, that is NOT upped prices....you actually get 50% off the posted prices so you can see you actually get 50% off. It has maps, contact information, and lists in detail all about each campground. It ranges from the primitive (like nothing except an area to sleep or whatever) to the full-service ones.

I highly recommend this book. There's NOTHING like it.