In colonial times the Gulf of Corcovado was a major obstacle that prevented major contact between the Spanish settlers in Chiloé Archipelago and the southern Chonos living in the archipelagoes of Guaitecas and Chonos.
In colonial times, the Gulf of Corcovado acted as a major obstacle to communication between Spanish settlements in the Chiloé Archipelago and the southern Chonos communities inhabiting the Guaitecas and Chonos islands.