Here's the link to Krebs Cycling Products, makers of the Krebs Maps, which slinke swears by (literally and figuratively, I'll bet ...)

http://www.krebscycleproducts.com/

They make road maps and mountain bike trail maps. They're really great maps for cycling.

"Krebs Cycle Products produces detailed and concise bicycling guide maps covering much of Northern California. Our maps are originals, made just for cycling. They are carefully drawn to exacting detail and printed in beautiful colors. The extensive information on traffic, hills, bicycle trails, suggested routes, services and points of interest is not found in any other map or book."

But, unfortunately for the rest of the country, the maps cover only Northern CA.