Of all the federal agencies, the Forest Service seems to produce the worst maps. Not only are they often of dubious quality, they're sometimes very difficult to obtain in the first place. The new "IVM" (https://www.fs.fed.us/ivm/index.html) helps, it really is leaps and bounds better than anything available before, but for district-produced maps like MVUMs they're not necessarily in IVM, sometimes the only way officially to obtain them is to visit the district office, and then sometimes when you do that the district office has never heard of the map you want or has but can't find a copy.