Hito Esmeralda

The Hito Esmeralda (English: Emerald Landmark) is a tripoint where Argentina, Bolivia and Paraguay meet. This geographical point is at the edge of Pilcomayo River, at an altitude of 200 m (660 ft), with coordinates of 22°13′31″S 62°38′11″W.

Located within the region called Gran Chaco, the boundary marker marks a triple border region in South America; It is located more precisely 8 km (5 mi) northeast of the Argentine town of Santa Victoria Este and 8 km north of La Merced Mission, both in the province of Salta.

The Chaco limit was established by Hayes Case in 1878,^[1] and by the treaty complementary to the limits of 1939 signed in Buenos Aires,^[2] and ratified in Asunción in 1945.^[3]