![g4/48/107648/3/143133248.zcYMdd7k.jpg](https://a4.pbase.com/g4/48/107648/3/143133248.zcYMdd7k.jpg) Bright red Euglena algae scum surrounding rock in Longxi river with stone bridge in Chengkan village China
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![g4/48/107648/3/143133247.JPC3T1Nm.jpg](https://a4.pbase.com/g4/48/107648/3/143133247.JPC3T1Nm.jpg) Stone steps and bridge with bright red algae scum on Longxi river in Chengkan village China
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![g2/75/47975/3/147235059.oUGLguSB.jpg](https://a4.pbase.com/g2/75/47975/3/147235059.oUGLguSB.jpg) Scum & Autumn Leaves 28265
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![g4/48/107648/3/143133245.vMo7D9F4.jpg](https://a4.pbase.com/g4/48/107648/3/143133245.vMo7D9F4.jpg) Stone moorings and bridge with bright red algae scum on Longxi river in ancient Chengkan village China
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![g4/48/107648/3/143133246.PK4GpVto.jpg](https://a4.pbase.com/g4/48/107648/3/143133246.PK4GpVto.jpg) Stone moorings and bridge with bright red algae scum on Longxi river in Chengkan village China
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