The Cordillera Sarmiento is a mountain range located in the Chilean Patagonia to the west of Puerto Natales named after Pedro Sarmiento de Gamboa, who was a Spanish explorer who navigated the region's waterways between 1579 and 1580. On the official maps of the Chilean IGM, not a single feature of the Cordillera de Sarmiento has been given a name, in part due to the total lack of human presence in the area. Nevertheless, over the years, explorers and climbers have named the summits, lakes, glaciers, and rivers. With nearly 2,000 metres of jagged relief, the cordillera has a profile somewhat similar to the French Alps, but its glaciation is much more extensive, sending large glacier snouts into tidewater.