The great Sarasvati river of the Indus Valley Civilization was described with pure awe in the RigVeda which was put to paper (or skin) using an alphabet rather than the Indus Valley Script during about three hundred years when the Ice Age ended and about a century beyond (1500 b. c. to 1200 b. c.), yet by circa 500 b. c., in the Mahabharata is noted that the Sarasvati had disappeared into the desert sands, now the Ghaggar-Hakra seasonal drainage flow what remains of the mighty Sarasvati. The Sutlej river now which flows into the Indus during the Ice Age though fed into the Sarasvati river, but that changed by isostatic crustal forces when the Ice Age was ending when the flow of the Sutlej begin going to the Indus drainage, while the rainfall catastrophically declined, the end of the Indus Valley Civilization.
