The JMT maps created last year have been completely redone with digitized base maps.
You can preview all the maps and data book here:http://postholer.com/mapbooks/preview.php?trail_id=4
Free registration is required to download as to keep unnecessary traffic away.
They are created with the most current data available, landcover, Hydro, FSTopo, DEM, etc. The land cover is 5 years old, not 50 like all the other topo maps out there.
View the old thread
from last year during the inception of this project.