By Lenn Thompson, Executive Editor There are other single-vineyard riesling programs in the Finger Lakes, but Lamoreaux Landing Wine Cellars was among the first wineries to enact one. It's a part of their portfolio that I always find fun and educational to explore and topping at out at $20 per bottle, it's probably the most affordable site-to-site exploration available. Lamoreaux makes three labeled single-vineyard rieslings and their reserve riesling comes from another single vineyard. Lamoreaux Landing 2010 Yellow Dog Riesling ($20) comes from one of the winery's youngest vineyards, planted in 2007, and opens with aromas of grapefruit, peach and…