Not sure how close to me you were, but there are abundant Flatheads in both the Big Sioux and James Rivers over here on this side of the border. A 28 lb Flathead was taken this summer out of the Big Sioux, close to Pipestone. Like most from this area, I never had a taste for catfish and still don't. I fish for Walleye for eating, and Northerns for fighting (and eating).
I was about 75 miles east of the border, halfway between fargo and minneapolis ,, oodles of lakes ,, lots of walleye, bass, sunnies and crappies ,, and more northerns that ya can shake a stick at.
was in a local sportsman club that seeded a few local lakes with muskies and walleyes over the years
my favorites are crappies and panfish.. its the beer batter golden fried in butter yum yum recipe that works for me