This parcel is scattered with limestone and marine deposits that covered the region millions of years ago. The limestone layers are well-drained and particularly rich in rhizobacteria, the microorganisms that help roots withstand stress and absorb nutrients in the extreme conditions of the cold, arid Adrianna Vineyard. Mundus Bacillus Terrae ("microbes of the earth," in Latin) pays homage to these bacteria.

The 1.4-hectare parcel of vines produces a wine of remarkable concentration and great acidity. 
 

Adrianna Vineyard is considered the most studied vineyard in the world. The Catena Institute of Wine has published 25 papers focused on micro-organisms, pollinators, birds, and native vegetation in prestigious peer-reviewed journals. A dedicated task force monitors energy consumption, weather stations map soils, 44 nesting crates provide habitats for native birds, and 39% of the vineyard land remains in virgin conditions.

Each of the Catena Zapata family vineyards is divided into parcels according to their soil composition. These parcels are farmed individually, with an eye on encouraging their most authentic fruit expression. The Adrianna Vineyard wines are Certified Organic by Letis.