total French vineyard surface has decreased. In 1967, there were of Alsace vineyards, in 1982, , and in 2007, . Over the same period of time, among the varieties, Pinot gris has increased the most, from 4% to 15% of the vineyard surface, while Sylvaner has decreased the most. Use of the name "Tokay" in Alsace The grape variety Pinot gris is believed to have been taken to Hungary in the 14th century, where it was named Szürkebarát. It is further believed to have been brought back to Alsace by General Lazarus von Schwendi after his campaign against the Turks in the 16th century. It was planted in Kientzheim under the name "Tokay", taken from Hungary's most famous wine Tokaji, which does not use Pinot gris, but rather Furmint and Hárslevelű mainly. For a long time, the Alsatian wines produced from this variety were labelled Tokay d'Alsace. However, in 1993, an agreement was reached between Hungary and the European Union (of which Hungary was not yet a member) to phase out the name Tokay from non-Hungarian wine. In the case of Alsace, the name Tokay Pinot gris was used as an intermediate step, with the "Tokay" part eliminated in 2007. Geography, geology and terroir The geography of the wine growing area in Alsace is determined by two main factors, the Vosges mountains in the west and the Rhine river in the east. The vineyards are concentrated in a narrow strip, running in a roughly north–south direction, on the lower eastern slopes of the Vosges, at altitudes of 175–420 m. Those altitudes provide a good balance between temperature, drainage and sun exposure under Alsace's growing conditions. Because of predominantly westerly winds, the Vosges mountains tend to shelter Alsace from rain and maritime influence, and the region is therefore rather dry and sunny. Rainfall in Colmar is 500 mm, but can vary greatly between sites, and is the driest city in France. While the slope down the Vosges is generally east-facing, many of the best sites are south-west to south-east facing, and benefit from extra sun exposure. Alsace's geology is quite varied, with many different kinds of soils represented in the vineyards. Alsace's soils are a result of its location at a geological fault. Alsace as a whole is located on the western part of the Rhine Graben, which is the result of two systems of parallel faults, with a dropped down