4 ms·That sounds quite interesting. Why are you trying to reconstruct a river bottom?by Miraste 1y agoThat sounds quite interesting. Why are you trying to reconstruct a river bottom?llbbdd 1y agoI'm also very curious. Searching for missing persons? Buried treasure?btbuildem 1y agoThe shape river bottom causes a few standing waves / rapids to form. I am fascinated by it and want to better understand the hows and whys of it.