Argentina’s Corona del Inca, a volcanic caldera formed about 520,000 years ago

iss074e0546812 (May 3, 2026) --- Argentina's Corona del Inca, a volcanic caldera formed about 520,000 years ago, also hosts the world’s highest navigable lake, whose relatively warm temperatures suggest ongoing hydrothermal activity. The International Space Station was orbiting 269 miles above the Andes Mountains when this photograph was taken.