CALCHONA
Folklore of Chile
This is the name of a giant beast in the traditions and folklore of the people of Chile. The CALCHONA is described by Julio V. Cifuentes as resembling a huge dog, but with a thick tangled beard and a long white shaggy coat like the fleece of a long haired sheep. It inhabits mountain passes and traps late-night travelers, scaring them out of their wits and panicking the horses. Although malicious, it seems to do little more harm then stealing food from the frightened humans and then retreating.
Source: Giants, Monsters, and Dragons: An Encyclopedia of Folklore, Legend, and Myth