View up the headwaters of Quebrada Humantay in SE direction. On 23 February 2020, a large landslide occurred on the S face of Nevado Salkantay and impacted Laguna Salkantaycocha at its base. The displacement wave overtopped and partly eroded the moraine dam, resulting in a catastrophic glacial lake outburst flood (GLOF) that reshaped the valley until tens of kilometres downstream, and led to several fatalities and huge damage.