Santa Cruz Mountains The Official Appellation-Specific Wine Club Featuring Exclusively Santa Cruz Mountains Wines Search no further, you've found the best and easiest way to discover the wines of the Santa Cruz Mountains when you become a member of the Santa Cruz Mountains Wine Club - the only wine club officially representing the wineries of the Santa Cruz Mountains Winegrowers Association. We offer a great way to sample a variety of handcrafted wines carefully selected from award-winning wineries located in the highly acclaimed Santa Cruz Mountains Wine Appellation.