The Tunguska Event took place in the Tunguska River...I don't
know much about it but you know this is good enough.:) thank you
for viewing my answer!!~Taeven Perkins
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Tunguska Rivers are approx 600 and 800 Km North of Krasnojarsk ,
in the middle of Siberia. Of these the southern one, Podkamenaja,
is famous for the 1908 explosion. Both rivers are east of, and
tributaries of, the Yenisai River