Cooperativa Santo Isidro de Pegões was founded in 1958. The cooperative is made up of 140 winegrowers and has access to over 1100 hectares of vineyard located in the Terras do Sado area of the Setúbal peninsula. This coastal area benefits from mineral-rich sandy soils and cooling Atlantic winds. Santo Isidro de Pegões is one of the most forward thinking cooperatives in Portugal and their chief winemaker, Jaime Quendera one of Portugal's most respected winemakers.
The Pegões vineyard is located between two Nature Reserves: the Tagus estuary to the Northwest and the Sado on the Southwest. To the east are the Arrabida hills and to the west the Alentejo province's clays. The unique soil here is named "Pliocenico de Pegões". It is a sandy soil formed over millions of years by sand transported by the rivers Tagus and Sado. It is this Mediterranean climate and soil combination that creates this unique Pegões terroir.