Castiglion del Bosco produces Sangiovese-based wines from Montalcino in Tuscany's heart. The winery's portfolio centers on Brunello di Montalcino, the region's most structured expression of the varietal. Millecento Brunello di Montalcino Riserva and Campo del Drago Brunello di Montalcino represent the upper tier of the range, both drawing critical attention from Wine Advocate, Wine Spectator, Decanter, Wine Enthusiast, and Falstaff. The entry point, Deimassi Rosso di Montalcino, offers younger-drinking Sangiovese from the same terroir. Montalcino's elevation and clay-limestone soils yield wines marked by tannin structure and aging potential—hallmarks of the appellation. These wines reflect the precision demanded by Brunello's regulations and the character of central Tuscan viticulture.