Which DOCG is particularly known for producing high-quality Amarone wines?

Valpolicella DOCG is especially renowned for its production of high-quality Amarone wines. Amarone della Valpolicella is a specific style of wine made using the appassimento method, where grapes are dried before fermentation. This process concentrates the sugars and flavors in the grapes, leading to a full-bodied wine with rich flavors and higher alcohol content. The Valpolicella region, located in the Veneto area of Italy, provides the ideal conditions for this style of wine, given its unique climate and soil composition.

The other options, while they each produce notable Italian wines, do not focus on Amarone. Barbera d'Asti DOCG is known for its Barbera wines, which are typically more vibrant and fruity. Brunello di Montalcino DOCG focuses on the Sangiovese grape to produce robust and age-worthy red wines, while Langhe DOCG encompasses a variety of wines made from different grape varieties, including Nebbiolo, but does not specifically highlight Amarone. Thus, Valpolicella DOCG stands out as the key region for Amarone production.