Big lake, heavily pressured, walk in pits & ponds that aren't so heavily pressured. Your location says Columbia, MO. You're probably talking about the Finger Lakes/Rocky Fork conservation area, right? Early to mid-80's, I fished that area quite a bit. You've got a few options.
Option A - research & network - there is someone who can give you permission to get a boat on those secluded waters. I found that person in the 80's, you can also with diligent and creative research.
Option B - Tote in a boat. I had a belly boat, that was good for mid May through early September. A kayak is an option. If you've got a buddy a canoe is an option. I had a professor pal who had an 18' flat bed trailer and he towed an ATV and a 16' jon boat (on a little trailer) He would just back the ATV & boat trailer off the flat bed trailer and off he'd go, down the different paths that run all through that property. When you came across a chain or gate across a path, he'd just reach into his pocket, pull out a key and say "Lock the chain/gate behind us after we pass through." Back in the day, the U of MO and the Conservation Department often had a mutual back scratching relation ship. I presume this is still the case.
Option C - As I recall, most of those waters were actually better bluegill & various sun fish fisheries than they were bass fisheries. Get a bunch of your buds together, 7' light action spinning rods, corks & split shots and go to town. Don't stop until everyone has their limits. You can actually chum them up and summon a monster school of bluegill and catch all you can carry. I used crushed dry cat food, throw enough into the water that it makes an obvious cloud and then fish crickets on floats near the bottom of the cloud, where the water you've chummed meeds the clearer water.
If you are determined to bass fish, fishing from the bank is a challenge, and there are better and easier places to bank fish than the finger lakes/Rocky Fork strip pits. Many of those pits are very deep. How deep? I remember 40 feet or more being common, but that was 30+years ago. They might have filled in a little bit then. Basically, on each one of those pits, there is a shelf. That is where they got the bull dozers in and out of the pits. Many pits have 2 or 3 of them as the veins of coal they were following didn't always run in a straight line. That is your shallows. That's it. Some time during the day there will be action on those shallow shelves. The vast majority of the area of the pits, the banks drop nearly vertically, down to the bottom. The pits are ringed with vegetation though. This is key. Fish will be suspended, relating to that vertical wall of weeds in some way. They are a challenge to access from the bank. Paralleling the weed wall with some kind of crank, like a shad rap works. I think that drifting a wacky rig senko slowly down the fact of the weed wall works better.
Back in the days when I fished those waters regularly, I was a meat fisherman. I seldom had issues with catching enough fish for supper there.
Hope this helps