We get the most current advice from Yelp.com for campgrounds and it is easy to do a lookup for an area. Problem with Woodalls is that the listing is by town and in the western USA this makes it worthless. Want to find campgrounds around Yosemite or some other attraction and you need to know what towns are in the area and they if the one town starts with an "A" and another with a "H" and another with a "V" you need to bounce around the directory to find the information. It would not be possible to do a worse job of organizing a directory than has been done by Woodalls. I bought one and after one trip the directory went into the recycle bin.