California as a wine producing region has grown in size and importance considerably over the past couple of centuries, and today is the proud producer of more than ninety percent of the United States' wines. Indeed, if California was a country, it would be the fourth largest producer of wine in the world, with a vast range of vineyards covering almost half a million acres. The secret to California's success as a wine region has a lot to do with the high quality of its soils, and the fact that it has an extensive Pacific coastline which perfectly tempers the blazing sunshine it experiences all year round. The winds coming off the ocean cool the vines, and the natural valleys and mountainsides which make up most of the state's wine regions make for ideal areas in which to cultivate a variety of high quality grapes. There are plenty of notable native Spanish grapes which have made a big impression on the wine world at large, but none are as renowned or as widely loved as the Tempranillo varietal. This black skinned grape has been used for wine making for centuries, with several ancient civilizations noticing the fact that it is highly versatile and holds some delicious flavors and aromas, perfect for those looking for a powerful yet elegant grape for their wines. Tempranillo often causes winemakers some trouble, however, as it is highly susceptible to many diseases. Despite this, plenty continue to persevere with this varietal, as it is perfect for producing delicious and complex single variety and blended wines, packed full of classic Spanish flavors and plenty of aromatic and intense surprises.