I really think that this is a general term, and that the above will work, despite the fact that the tanks referred to are probably fermentation tanks, and also that this term can also refer to regions.
If you look at Google, you'll see that a lot of the refs refer to a winemaking area and a tasting room in a winery.
1st ref is a wine dictionary. Hope you find it useful.

This is a Spanish-English glossary (not necessarily all correct, but useful!)

http://www.trinor.com/WineEN/WineTermsEN.html