They make topos that are 25K, and get this, DOWNLOAD ONTO GARMIN MAPPING GPSs. They seem like fantastic resolution. Colorado only, and $79.95, but compared to Natl Geographic or ANYthing Garmin offers, far superior. The question is, would I be an early adopter of these? (AKA 'beta tester')? It would definitely cover the question of GPS maps for USFS, BLM, roads, trails... you name it. But not routable.