The Tejo region, formerly designated as Ribatejo, spans along the Tejo River in a vast plain from Lisbon to the Zêzere River. Its fertile soils and a Mediterranean climate, featuring mild temperatures throughout the year, create optimal conditions for vineyard cultivation. The terroir of the Tejo region significantly influences the high quality of the wines produced there. The land is notably shaped by the presence of the Tejo River, which courses through it. Given the extensive size of the Tejo region, the terroir varies across its different wine-growing zones. This diversity enables these regions to produce a range of distinctive wine types.