We've had excellent luck with benchmark maps in the past, especially Idaho, Oregon, and (for the most part) Washington. The ability to zoom in at 3 different levels of detail on a particular area is a major bonus. The landscape level detail typically far exceeds the Gazeteer maps. California is really out of date, however, and caused miles and miles and hours of wasted time. In particular we were traveling in Northern California, and time after time, the map failed to indicate that roads no longer were open to the public due to privatization, development, gated resort compounds, logging, etc. Mileage accuracy was also poor for the region near Mount Shasta. We traveled miles down dirt roads to find locked gates and campgrounds that no longer existed. Benchmark sorely needs an update to California. We won't give up on the company yet, but this book was truly disappointing.