Quesería Peña Rubia is a small artisan Spanish cheesemaker based in Guadalix de la Sierra, north of Madrid, specializing in traditional cheeses produced in small batches with a strong connection to the dairy heritage of the Sierra de Madrid region. The producer is particularly known for cheeses made from raw sheep’s milk, while its portfolio also includes goat’s milk and mixed-milk varieties, all crafted with a clear focus on authenticity rather than industrial-scale production.