Viola area...Foxwoods, Flagpole, Where He Fell In The Lake (from my club days). 13 Area...Tornado Cove.
My favorite non-Rock places were on the Mississippi up in Iowa / Illinois...Dead Cow Cut (where most of a small bass club whacked 'em for 2 days around quite literally a dead cow), Shut Down Slough (where you had to shut down on the way in and listen for someone coming out...had 5-6' of water with a zig-zag to get in, but it was only wide enough for one boat, once past that point it opened up into a large backwater with deep water all the way back...If you didn't hear someone coming out, you pinned it and blew into the backwater on pad). Was fishing in Shut Down when another guy from my club who thought he was the only one who knew the way in, blew in and came off pad. He was beyond steamed when we told him we'd been in there for about 2 hours, absolutely priceless. Then I ran out of gas running upriver. Oh well.