No worries; we had a great day! We ended up making a loop to Calistoga from St. Helena first. You all are so right about being buzzed by cars on Silverado, and it was even worse with construction on 29 (?), with no bike lanes, or seperated bike lanes through construction, some that were blocked partway, one that left me in a soft gravel pit next to a driveway. Also got a flat in the first 5 miles from evil thorns. We had a huge breakfast for lunch in St. Helena, and then headed on your route. However my friend needed to get back, so we only rode as far as we could for 1 hour, before turning around - before the 'steep hill' turn- and came back to St. Helena.

We got in just about 40 miles, and are planning to go back and do that entire route *first* - and yep, I'll bring a map next time!

So funny - went into Wheelworks to ask about a map, and the guys there are watching some mountain biking video, and say they don't have a map and '...you don't need a map! Just go and ride!'