From the Río Colorado to Tierra del Fuego, Patagonia spans the southern half of Argentina. The wine industry here has waxed and waned at different periods over the 20th and 21st centuries. One can find old vineyards planted in former riverbeds alongside brand-new vines growing right out on the steppe. With the historic allure of an ancient frontier, wines from these southern terroirs offer a range of different characteristics. Following three separate trips and 164 wines tasted in December 2021, this is my dispatch from the end of the world.