Rock Wall Wine Co. is located on Monarch Street, site of the former Alameda Naval Air base. The wines are made by Shauna Rosenblum, daughter of the late and great Kent Rosenblum (Formerly of Rosenblum Winery.) The 100% Zinfandel elicits flavors of blackberry, cherry pie, sarsaparilla and a hint of cocoa puffs. This wine sells for $25 at the winery, our price....