Notable FactsRiesling is the grape of the Mosel – the combination of this grape with the slate soils is what makes Mosel wines so breathtakingly delicate. Common descriptors of the Mosel Rieslings include steely acidity, wet stone and delicate texture. Lower in alcohol and high in acidity, the wines are still balanced with the rich flavors of Riesling and the slate-y flavors from the soil. Two districts (or Bereiche) that you find most often on Mosel labels are Bernkastel and Zell. Both are good producers of wine from this region. Many other good wines are coming from the area – just look to make sure the bottle says "Riesling" on the label – that's a sign of quality.
The most famous of the California wine regions is Napa Valley, and these wines are certainly outstanding – but it's not as broad and diverse as its larger neighbor, Sonoma County. Down south, Santa Barbara's Santa Maria Valley is well-known for its Rhône blends, as well as cool-climate varieties like Pinot and Chardonnay. The Central Coast, the largest California AVA, has many different microclimates that lead to a wide range of wines with many sub-AVAs.