I don't know. I have a few for areas I know fairly well. Seems they always have a couple trails that are not found on other maps though. But all of mine are in California.
But since we are discussing maps and trips, I thought I might share how I often do this. An example is the Lake Mead Recreational area. When I first visited Hoover Dam many years ago I was overwhelmed by how large the area was. So I stopped by the visitor center to talk to the folks there and even a couple of Rangers. Well, no really knew much about hiking, I think they like to drive around in their SUVs and sit in the air conditioned buildings.
So I bought a Nevada Atlas and picked up the free map of the entire Recreational Area. Then I studied them to find what looked like the most remote areas. From here I ordered a Trails Illustrated map for more research. I found many areas that looked interesting. Then I researched those areas on the Web. Areas with trail guides or lots of Internet traffic were scratched from my list. From here I mapped out many trips, and ordered USGS maps before each trip. Since there were no trails at all, I prefer the larger maps. Then I started hiking all over the area every December on trips of up to a week. The method works well. I have now moved to sections of Arizona.
Another interesting resource is the Colorado River Boating Trail Guides published by the California Department of Boating and Waterways. These show all the launch points, lagoons, and other areas of interest to boaters. Using these guides we have boated most of the Colorado from below Imperial Dam and almost up to Hoover Dam in our little 10.5 foot inflatable. We have a small outboard, because my wife is not going to sleep on the ground at night. So on these trips we bring the tent trailer for use as a base camp. I use this guide to help me plan hikes in the many small mountain ranges in the Mohave and Lower Colorado desert. Gives me a better feel for water sources in case springs are dry or do not exist, it and shows all the little lagoons and special features that are begging to be explored, and I use them in conjunction with USGS Topo maps. There are several wilderness areas fairly close to the lower Colorado River, and few people ever go there due to the lack of water, but I can plan things with hikes to and from the River, often 10 or miles one way for water. But the trips are fantastic.
For areas I hike with trails, I usually print my maps with Nat Geo Topo!
And to be honest I would rather go somewhere that I do not know much about, other than what I glean from maps. Postings and articles about features and such sort of stuff takes the luster off a trip for me.