Chungará Lake
... that Chungará Lake was formed between 17,000 and 8,000 years ago when the Parinacota volcano collapsed and debris dammed a river?
... that <b id="mwAcg"><a href="./Chungará_Lake" id="mwAck" rel="mw:WikiLink" title="Chungará Lake">Chungará Lake</a></b> <i id="mwAco">(pictured)</i> was formed between 17,000 and 8,000 years ago when the <a href="./Parinacota_(volcano)" id="mwAcs" rel="mw:WikiLink" title="Parinacota (volcano)">Parinacota</a> volcano collapsed and debris dammed a river?