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ProkudinGorsky.Suna River. Study near the Kivach waterfall Suna River ProkudinGorskii reclined on boulders near rapids Sergei Mikhailovich ProkudinGorskii Collection Library of Congress LOCimage ppmsc Creator Sergei Mikhailovich ProkudinGorskii digital rendering for the Library of Congress by Walter Frankhauser WalterStudio There