It is my first creation for PMC , after a not too long building ''career'' and I hope that I've maked a good work for you guys :))

Here we have a dwarvish style barrage ( dam )made entirely of stone and some small other materials decoration, a simple redstone circuite that lifts a log up or down .When the oak log is up , the water don't cross and the river is unfilled and when is down , the water crosses from the mountain lake and fills the river
          Made by VanhelsingMC , only me :)
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