Rhineland-Palatinate is one of the 16 states of Germany. It has an area of 19,846 square kilometres (7,663 sq mi) and about four million inhabitants. The capital is Mainz. English speakers also commonly refer to the state by its German name, Rheinland-Pfalz.

Situated in western Germany, Rhineland-Palatinate borders (from the north and clockwise) North Rhine-Westphalia, Hesse, Baden-Württemberg, France, Saarland, Luxembourg and Belgium.

The largest river in the state is the Rhine, which forms the border with Baden-Württemberg and Hesse in the southeast before flowing through the northern part of Rhineland-Palatinate. The Rhine Valley is bounded by mountain chains and forms a fascinating landscape containing some of the most historically significant places in Germany.

The Eifel and Hunsrück mountain chains are found on the west bank of the Rhine in northern Rhineland-Palatinate, while the Westerwald and Taunus mountains are found on the east bank. The hilly lands in the southernmost region of the state are covered by the Palatinate forest and the Palatinate.

These mountain chains are separated from each other by several tributaries of the Rhine: the Mosel, the Lahn and the Nahe.

Agriculture and viticulture
Rhineland-Palatinate is Germany's leading producer of wine. In terms of grape cultivation as well as wine export Rhineland-Palatinate is the leading federal state. Its capital, Mainz, may be called the capital of the German wine industry, with the home of the German Wine Institute, the German Wine Fund in the Haus des Deutschen Weines (House of the German Wine), as well as the venue of the Verband Deutscher Prädikats- und Qualitätsweingüter Wine Bourse, which brings together the top winemakers of Germany and the wine merchants of the world.

Six out of all thirteen wine regions for quality wine in Germany, Rheinhessen, Pfalz, Mosel, Nahe, Mittelrhein and Ahr are located in Rhineland-Palatinate. Due to this fact 65% to 70% of the whole production output of wine grapes in Germany have their origin within this federal state. 13,000 wine producers generate 80% to 90% of the German wine export, which was 2.6 million hectoliters in 2003.

Traditional grape varieties as well as a wide range of varieties developed during the last 125 years are characteristic for the region. Classical white varieties are cultivated at 63,683 hectares (157,360 acres). These comprise the famous Rieslings 14,446 hectares (35,700 acres), Müller-Thurgau (8,663 hectares (21,410 acres)), Silvaner (3,701 hectares (9,150 acres)) and Kerner (3,399 hectares (8,400 acres)).

The share of red varieties grew constantly during the last decades and amounts to 20,000 hectares (49,000 acres). Dornfelder, a new breed, is the leading red grape cultivated on 7,626 hectares (18,840 acres), which is more than a third. Blauer Portugieser (4,446 hectares (10,990 acres)) and Spätburgunder (3,867 hectares (9,560 acres)) show also appreciable cultivated shares.

Beside these Pinot Blanc, Pinot Gris, Chardonnay as white varieties and Regent and St. Laurent as red varieties are increasing their share throughout the years, as the growing conditions improve in Rhineland-Palatinate.

The land supports the wine industry by providing a comprehensive consultancy and education program in the service supply centers (German: DLR) of the land. The Geilweilerhof Institute for Grape Breeding and also the Geisenheim Grape Breeding Institute are fully or even partially financed by the land. Many well known new breeds like Morio-Muskat, Bacchus, Optima and Regent have been created in these institutes.

The world wide leader in sparkling wine production, producing 245 million bottles in 2006, is the renowned Schloss Wachenheim Group. This company has its roots and its operations at different places in Rhineland-Palatinate and is headquartered in Trier.

Other renowned sparkling wine producers like Kupferberg, Deinhard and Henkell also had their roots in the land, but now belong to companies outside this federal state, due to business consolidation.