Château Gazin is located on the right bank of the river Gironde in Pomerol, Bordeaux. The 26-hectare (64-acre) vineyard is planted on one of the highest plateaus in the region. The vines, which are on average 35 years old, are planted on Gunizan gravel topsoils with blue and green clay subsoils interspersed with iron oxide. Merlot flourishes here and the soils drain well, allowing for a good supply of water for the roots. While more than 85 percent of the vineyards are planted to Merlot there are a few rows of Cabernet Franc and Cabernet Sauvignon grown throughout the vineyard.