Laguna del Desierto incident violence in order to obtain control of the zone and political preponderance of the force. American historian William Sater states: Laguna del Desierto incident The Laguna del Desierto incident, in Argentina called also Battle of Laguna del Desierto, occurred between four Chilean Carabineros and between 40 and 90 members of the Argentine Gendarmerie and took place in zone south of O'Higgins/San Martín Lake on 6 November 1965, resulting in one lieutenant killed and a sergeant injured, both members of Carabineros, creating a tense atmosphere between Chile and Argentina. The British award of 1903 considered the demands of Chile and Argentina
Laguna del Maule (volcano) of mountains farther west, leading to a lack of glaciation at the numerous summits exceeding in altitude around the lake. Most of the lake water comes from snowmelt; for much of the year the landscape around the lake is covered with snow. The area of Laguna del Maule was glaciated during the last ice age, with a maximum occurring between 25,600±1,200 and 23,300±600 years ago. Probably due to changes in the position of the Westerlies, after 23,000 years ago the glaciers retreated above Laguna del Maule. The glaciation has left moraines and terraces in the area, with undulating hills lying