Some Cava is produced in Rioja, Spain.
Answer: True.
Cava is not an actual place (like Champagne), but rather a type of wine. It is governed by rules set forth by the Cava DO (Denominación de Origen) and can be made in any of eight Spanish wine regions. Even though more than 95 percent of Cava is made in an area southwest of Barcelona in the Penedès, Cava can come from regions hundreds of miles away (like Valencia, Extremadura, and Rioja).