+1 on the above for National Geo software. I get much better results with mytopo.com, but you're stuck with decades of errors (i.e., last Isle Royale maps were early 1960s).
The Natl Geo Trails Illustrated maps do correct and clean up, and the only error there I've found so far is the Clear Lake trail in Yellowstone. But the scale varies widely -- they size the map to the eight-fold paper, which misconceives the purpose of a map.