Aysén del General Carlos Ibáñez del Campo Region in the context of "Administrative divisions of Chile"

The Taitao Peninsula (Spanish: Península de Taitao) is a westward-facing landmass on the south-central Pacific west coast of Chile. The peninsula is connected to the mainland via the narrow Isthmus of Ofqui, over which tribal peoples and early missionaries often traveled to avoid navigating the peninsula's treacherous waters, carrying their boats and belongings overland between the Moraleda Channel and Gulf of Penas. The Taitao Peninsula is situated in the Aysén del General Carlos Ibáñez del Campo Region, and part of the landmass is located inside the boundaries of Laguna San Rafael National Park. The Presidente Ríos Lake, with a surface area of 352 square kilometres (136 sq mi), lies in the center of the peninsula. A southward-incurving projection of its outer shoreline is known as Tres Montes peninsula, the most southerly point of the cape of the same name.

Spanish explorers and Jesuits that sailed south from Chiloé Archipelago in the 17th and 18th centuries regularly avoided rounding Taitao Peninsula entering instead the Gulf of Penas after a brief land crossing at the isthmus of Ofqui. While attempting to pass the Gulf of Penas in 1741, a storm caught the British ship, HMS Wager, causing it to wreck on (the eventual) Wager Island, on the Guayaneco Archipelago. Some of the survivors, including John Byron, were led into the Spanish settlements of the Chiloé Archipelago by the Chono chieftain Martín Olleta via Presidente Ríos Lake.

46°50′50″S 75°20′04″W / 46.84722°S 75.33444°W / -46.84722; -75.33444

The Tres Montes Peninsula (Spanish: Península Tres Montes, English: Three Hills Peninsula) is a southwestward projection of Taitao Peninsula which in turn connects to the mainland of Chile by the narrow Isthmus of Ofqui. The peninsula is situated in Aysén del General Carlos Ibáñez del Campo Region close to the Chile Triple Junction of the Nazca, Antarctic and South American plates.

The Carretera Austral (CH-7, in English: Southern Way) is the name given to Chile's Route 7. The highway runs south for about 1,240 kilometers (770 mi) from Puerto Montt to Villa O'Higgins, passing through rural Patagonia.

Carretera Austral provides road access to Chile's Aysén Region and southern parts of Los Lagos Region. These areas are sparsely populated and despite its length, Carretera Austral provides access to only about 100,000 people. The largest city along the entire road is Coyhaique with a population of 53,715 in 2010.

Presidente Ríos Lake (Spanish pronunciation: [pɾesiˈðente ˈri.os]) is located in the Aysén del General Carlos Ibáñez del Campo Region of Chile. It lies in the middle of the Taitao Peninsula.

While the lake's existence only became known in Chile in 1945, it appears to have been known by Chono natives, who led 19 survivors of HMS Wager (including Captain David Cheap and Midshipman John Byron) from Wager Island through it in 1742. The Chonos, who often had a hostile relationship with the Spanish, kept the lake secret from them despite serving the Spanish as maritime pilots. Despite official discovery in 1945, the lake was already known to seafarers from Chiloé.