Welcome! Which Great Lakes & tribs do you fish?
I've fished the Salmon River, Pulaski (kai not kee) landed a 16 pound 3 oz buck on a nameless branch of the main river downstream from the mouth of Orwell Crk. almost 20 yrs ago. Then a 12# hen at the Trestle, same day.
I moved out to Seattle a couple years later and chased them in their native waters for 12 years. Some of them came from Skamania County Washington, where the great lakes summer runs get their name. Rivers like the Wind and Washougal should be getting some chromers entering from the Columbia every day now out there.
I've also been to Muskegon on business, didn't get to fish but I was impressed with Lake Michigan and the rivers in the area. I'd like to get to Huron someday as well.
Were you nymphing or swinging a wet fly over them?