The Echaurren Norte Glacier is a reference glacier for the World Glacier Monitoring Service (WGMS) network and has the longest time series of glacier mass balance data in the Southern Hemisphere. The data has been obtained by the direct glaciological method since 1975. In this study. we calculated glacier area changes using satellite images and historical aerial photographs. https://chefesquipmenters.shop/product-category/sanitation-pails/