Originating in France yet now grown in many parts of the New World, Chenin Blanc is one of the most versatile and highly regarded white wine grape varietals on earth. These green skinned grapes hold a relatively high acid content, and as such can be used for making still white wines of exceptional quality, as well as superb sparkling wines (such as the Crémant wines of the Loire Valley) and extremely aromatic dessert wines. Their natural transparency means that they are a fine grape for expressing their terroir in the bottle, and winemakers often experiment with this varietal to coax unusual and intense flavors from the grapes, such as allowing the development of noble rot on the fruit in order to make sweet and viscous wines of a unique character. When it comes to New World wines, and especially wines from the United States of America, Napa Valley is something of a standard bearer. Over its relatively short history, it has managed to transform itself from being a fairly insignificant region, to becoming one of the most important and highly regarding wine locations on earth. With an ideal climate for viticulture, blazing sunshine and a low level of rainfall, this valley is shielded on many sides by mountain ranges which help it maintain a consistent level of heat, light and moisture throughout the year. Today, Napa Valley is a home of innovation and quality, with dozens of grape varietals thriving in the fertile soils. However, the main varietals grown there have always been Cabernet Sauvignon, Chardonnay, Pinot Noir, Merlot and Zinfandel, and the wines they produce are constantly lauded by critics and competitions across the globe.