Have you read Lonely Planet’s Wine Trails: Plan 52 Perfect Weekends in Wine Country?
On p. 296 you’ll find:
Fans of Napa Cabernet Sauvignon will often be heard debating the respective merits of “mountain” Cabernet vs. those from the Valley floor. Those curious enough to taste the difference for themselves should head up Spring Mountain to the rustic but welcoming winery of Smith-Madrone, where brothers Stu and Charlie Smith have been making some of the Valley’s most under-rated Cabernet (not to mention Riesling and Chardonnay) since 1971. These are wines that not only taste great when they are young, but also age superbly if you have the patience to stick them away for a few years.
A visit to Smith-Madrone not only gives you the chance to spend time talking and tasting with some of the friendliest and most genuine winemakers in the business, it also offers up some of the most spectacular vistas in the entire Napa Valley. The old barn is full of charm….