Spain
There are currently more than 1,200 vineyards and wineries in the state of California. These vineyards produce 63 different varieties of grapes and wines.
40,000
20,000
There is no standard collective noun form the noun 'vineyards', in which case a noun suitable for the situation is used, for example an itinerary of vineyards, a cooperative of vineyards, a collection of vineyards, etc.
Spain was a large country with a diverse economy. Farmers raised crops, vineyards made wine, factories made steel and useful objects of steel- and Spain had a large firearms industry at that time.
If it means one weaver's vineyards then it would be Weaver's Vineyards, but if it was multiple weavers then it would be Weavers' Vineyards. Or if it was just Weavers as a name, it would be Weavers Vineyards.
80 wineries
There are a number of great wineries in Napa. They include Domaine Carneros, Artesa Vineyards & Winery, Silverado Vineyards, and many more.
Markham Vineyards was created in 1978.
Hanzell Vineyards was created in 1948.
Almaden Vineyards was created in 1852.