17 March 1989.
Libertador General Bernardo O'Higgins, Chile
Locality: Cachapoal. In Sierra de los Punzones, Minas del Rosario, 100 m W of W end of tunnel, 1.3 km W of W end of Laguna Los Cristales.
Coordinates: -34.5667, -70.5167
(Map it)
Elevation: 2110m.
Collector(s):