The Castro Laboreiro Dog (Portuguese: cão de Castro Laboreiro, ‘dog of Castro Laboreiro’), also known as the Portuguese cattle dog or Portuguese watchdog, is a dog breed of the livestock guardian type, originating from Castro Laboreiro in the northern mountains of Portugal.
Image credit: Schiowa, CC BY-SA 3.0
Adapted from Wikipedia, CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Castro_Laboreiro_Dog