Fw and I were fishing one day down around Winona and this COE boat was doing something there 
,not sure what exactly tho, it was traveling in patterns.
Anybody have any insight as to what they were doing?
I’ve seen this a few times. I always assumed they were charting and/or confirming depth.
Yep, they were taking readings
Wonder how that would work for location sturgeon? 
It’s used mostly around lock and dams to monitor the scour holes isn’t it? That’s a Corp boat?
no ive seen it by reeds landing earlier this year
If you would have zoomed in closer you could tell it was this boat actually 
Pleasure Craft Patroll.
They call them Sounders. They are usually sent out before the Corp. comes to do Dredging this boat marks the area of the river to be dredged And sets out the markers as well. When there is a lot of pleasure boat traffic i’ve seen them set all day & work all night!!
Phil 
yep thats true, after the readings are taken they then give the new info to other corps employees to fish the new found honey holes and they in turn will contact the locks and dams to inform them that the water level will drastically be dropping
And don’t forget that Corps employee’s will share the info – for cookies and cold beverages!
Would like to rent damman’s boat to keep waterskiers and personal watercraft 
, at a distance so i can fish. Some guys may used it to guard tourney spots. 
Been known to happen 
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