Saw the same thing up the river in 15-20’ water Saturday! Russia I guess Kinda wondered what it was!!!! Saw it in several places we were getting bunches of water from up river also ! And we are still getting lots of current I went out to the river out this evening for about and hour came back into one of the creeks was going to make a few cast and before I could get up and get the trolling motor deployed all the way the back end had already past up the front so I stowed the trolling and came on home