Liligo is a “surge-type glacier”, meaning it advances and retreats much faster than a normal glacier. Liligo flows south from the Baltoro Glacier, and is believed to have reached its maximum length in 1909, the year Vittorio Sella captured this photograph. After a period of ablation, it advanced slightly in the later part of the 20th century. However, current measurements indicate that this glacier is now in retreat.
Photography 1909: Vittorio Sella, Fondazione Sella O.n.l.u.s.
Photography 2009: David Breashears, GlacierWorks