Can you get across Illinois to Hannibal (I-74 to I-72) in five hours? I know it fits into a six hour driving day from south central Michigan, have not tried it from Indianapolis.
Places I am thinking of are on Mark Twain Lake, a state park and a couple of Corps of Engineers campgrounds. Fishing is mostly crappie, you can try flies if they are feeding at the surface. There are also bass, catfish, bluegills to feed the bass and catfish. The state park has boat rentals, I think.
Search on Mark Twain Lake Camping for individual campground descriptions and reviews (properties in the area range from public CGs to RV Resorts). Search on Mark Twain Lake Fishing for the fishing information.
If you are looking for trout streams, I'm thinking about SE to SC Missouri and NE to NC Arkansas, and that's a lot farther than five hours for you.
Don't know what is five hours north, but going south that will probably get you to Land Between the Lakes in SW Kentucky. A big area of parklands, with state and federal parks, and some private resorts at the northern end.
What I know from growing up in Michigan, if you take I-69 to Lansing, then follow US-127 until you run out of time, you probably will not have gotten far enough to get to the northern resort areas in the center of the state (Houghton Lake, Higgins Lake) and you definitely will not get to the Traverse City area in that amount of time. Similar problem trying to get into Wisconsin or Minnesota lake areas.
