Ruta de los Seismiles — Laguna Verde de Fiambalá Puna Dispersed Camp

This is raw Puna camping at its most elemental. Park on firm volcanic gravel along the northern or eastern shore of Laguna Verde, a shallow saline lake fed by snowmelt at roughly 4,300 m above sea level. The water goes a deep teal-green from mineral content. Wind is relentless by mid-morning — stake everything. No facilities, no signage, no other overlanders except during peak Argentine summer. Fire is pointless and prohibited at this altitude; cook on gas only. Nights are extreme even in January, so plan for sub-zero temps regardless of season.

Access is via the ripio and dirt track climbing west from Fiambalá toward the Argentine-Chilean border at Paso Pircas Negras. The last 40 km demand a proper 4WD with good ground clearance and extra fuel — the nearest pump is back in Fiambalá, roughly 100 km east. Carry water; the lake water is not potable. Best window is November through March before winter storms close the high road.

Volcanic Puna camp under the Seismiles giants