 Viedma Glacier is located in the undefined part of the limit between Chile and Argentina, in argentinian legislature it's in Los Glaciares National Park  which was declared a World Heritage Site in 1981. in Chilean legislature part of it is in Bernardo O'Higgins National Park.The Southern Patagonian Ice Field is ; Viedma Glacier is one of the Ice Field's 48 outlet glaciers that have more than of ice field area each.Viedma Glacier's glacier terminus is about wide at the point it enters Lake Viedma.