Errazuriz is a Chilean wine estate founded in the Aconcagua Valley in 1870 by Don Maximiano Errazuriz, who travelled on horseback out beyond established vineyard areas near Santiago to find the best possible terroir. By the time of the first release in 1873, the estate had over 300 hectares (740 acres) of vineyards. By 1890 this figure had risen to 700 hectares (1730 acres), making Errazuriz the largest wine estate in the world owned by an individual.
The estate's wines are popular at all price levels, but it has gained particular acclaim for its icon wines, Don Maximiano Founder's Reserve (a Cabernet Sauvignon-based blend), Seña (a partnership with Mondavi), Viñedo Chadwick (a 15-hectare vineyard on a separate Maipo estate), Kai Carmenère and La Cumbre Syrah. Their profile has been assured a series of blind tastings, starting with Berlin in 2004, pitching them with great success against wines from notable Old World producers.
The estate has seven vineyards in warmer areas of the valley planted largely to Bordeaux varieties and Syrah with some Viognier. It also owns the Costa Estate in Aconcagua's coastal region about 7.5 miles (12km) from the Pacific Ocean, where Sauvignon Blanc, Pinot Noir and Chardonnay are also grown. There are several winemaking facilities – the original 1870 winery in Panquehue is still in use (albeit with more focus as a cellar door), and in 2010 the company opened the Don Maximiano Icon Winery, devoted to the production of top-end wines.