DOC area (also Collares) on the Atlantic coast of Portugal north of Lisbon in the Lisboa region. The vineyards between the town of Sintra (the palace was the summer residence of the Portuguese kings) and the Atlantic Ocean are constantly buffeted by Atlantic winds and lie on sandy soil up to three metres deep, which is why the area was spared phylloxera in the 19th century. The climate is characterised by extreme fluctuations with lots of rain and cool temperatures. The predominant red variety, Ramisco, is cultivated ungrafted and has to dig its roots into the deep underlying clay layer. When new vineyards are planted, the thick layer of sand has to be dug away in order to reach the clay.
For me, Lexicon from wein.plus is the most comprehensive and best source of information about wine currently available.
Egon Mark
Diplom-Sommelier, Weinakademiker und Weinberater, Volders (Österreich)