page_title: Boundary Treaty of 1881 between Chile and Argentina
section_title: Occupation of the Straits of Magellan
hierarchical_section_title: Boundary Treaty of 1881 between Chile and Argentina / Background / Occupation of the Straits of Magellan
caption_attribution_description: Fuerte Bulnes
context_page_description: The Boundary Treaty of 1881 between Argentina and Chile was signed on the 23 July 1881 in Buenos Aires by Bernardo de Irigoyen, on the part of Argentina, and Francisco de Borja Echeverría, on the part of Chile, with the aim of establishing a precise and exact borderline between the two countries based on the uti possidetis juris principle. Despite dividing largely unexplored lands, the treaty laid the groundwork for nearly all of Chile's and Argentina's current 5600 km shared border.
context_section_description: The Republic of Chile founded Fuerte Bulnes in 1843, and later moved that settlement to the site of  Punta Arenas in 1847, giving a strong impulse to steam navigation through the Strait of Magellan and probably averted the occupation of the strategically crucial strait by the European powers or the United States. As stated in a book about the Strait of Magellan:
  An 1837 French expedition of Dumont D'Urville surveyed navigational conditions in the Strait of Magellan and recommended that a French colony be established at the strait to support future traffic along the route.
caption: Fuerte Bulnes
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