Shipwreck discovery?

[DiveCaptDean]

Just curious..has anyone done some serious shallow water sidescanning around here in the recent past?...In milwaukee, Jerry Guyer had been doing so, for many years..then he bought a new sonar and a whole new world opened up.  There were wrecks everywhere.  He found several wrecks in less than 100ft of water in places that it almost seems silly that there were not previously found...some in 30 to 40 ft were very similar to this wreck..a tug that had broken up etc..some were 70ft long with a 8ft rise off the bottom....I realize it gets pretty deep around these parts quickly, but Duluth, Superior ports have always been very busy...and frankly i feel that there are a disproportionate amaount of wrecks in the area...I Know that the bay is filled with old tugs etc..long since dredged or built over..and i realize the water is very dirty..but has it been sidescanned?...I would be very interested in speaking with anyone that has any information on this topic............on a diferent strand ....of course