Wikipedia
Parinacota (in Hispanicized spelling), Parina Quta or Parinaquta ( Aymara parina flamingo, quta lake, "flamingo lake") is a massive dormant stratovolcano on the border of Chile and Bolivia. It is part of the Payachata volcanic group. The other major edifice in that group is the Pleistocene peak of Pomerape. Parinacota's last eruptive phase has been dated using the helium surface exposure technique, which ties the eruption to 290AD ± 300 years.
One of the most dramatic eruptive events in the volcano's past was 8,000 years ago, when a major collapse of the edifice produced a 6 km³ (1.44 cubic miles) debris avalanche, which blocked nearby drainage patterns, creating Chungará Lake.
The volcano and Pomerape straddle the border between Sajama National Park (Bolivia) and Lauca National Park (Chile).