Yes, there ARE fabulous roads up here in the redwoods! I did a metric a couple of weeks ago which ran in part along the Avenue of the Giants. Yesterday I did 45 miles, there through the redwoods and back along the coast, stopping midway at our favorite organic coffee place. There is a 600 acre community redwood forest behind my house. I walk there mostly with the doggies, but there are lots of MTBers. There is actually a 12 hour MTB ride through the forests coming up.
Having said that, I have alway longed to see your part of the world, it sounds pretty magical also.
The bicycle is the most civilized conveyance known to man. Other forms of transport grow daily more nightmarish. Only the bicycle remains pure in heart. ~Iris Murdoch, The Red and the Green