Title: Perito Moreno Glacier. This is one of 48 glaciers in the Southern Patagonia Icefield in Argentina, the second largest contiguous ice field in the world. Unlike most glaciers in Patagonia that are receding due to climate change, the Perito Moreno glacier grows as much each year as it loses, keeping it in equilibrium. The glacier is 3 miles wide, rises approximately 74 meters above Lago Argentino, and extends 170 meters below the water surface.