Hello bigdog10!
If you know of a stretch of river that is typically slower, rock lined(not necessarily the whole run), has decent cover in and around a larger hole( generally a hole that reaches 6ft. +) it should harbor fish staging and adhering to wintering patterns!
The aforementioned holes need to keep the fish warm(er) throughout the winter. So depth, cover and few addtional factors play key roles in becoming a late, late fall smallmouth potential. A couple of those other factors is the shoreline and what to look for.
If a hole has some sand and mud along with rocklined shores, I bet there are some hungry bass in there. The shore plays a very important role. The sand and mud help warm the shallower water, increasing the production of food supply, like minnows, microbes, shrimp and crawfish as well. And with the little current in these holes, the warmer water can mix well with the cooler waters flowing through. By no means are these saunas, but the most subtle changes can effect the fish.
The depth is key too! I highly doubt(but not impossible) you will find smallies in the shallow/faster current in the late, late Fall! You probably will end up catching trout, at least in the Root River system. So look for the slow/meandering stretches of your favorite stream, while keying on structure laiden holes and runs.
Downed trees, submerged boulders, steep mud undercut banks are all favorite hiding places of the smallmouth. However, they won’t just be hiding, they will cruise the whole aforementioned stretch. Speaking of cruising, the smallmouth has been documented traveling many miles of river in a 24 hour period, in search of that perfect hold up for the long winter months ahead.
Another factor that plays a key role in success during “late, late Fall” smallmouth fishing, patience and their bite. This bite generally is a lot less aggressive and not as easy to distinguish from your bait bouncing the rocks. When drifting or placing(laying) plastics in the Fall, no slack is key when setting into a fish! However, I like to sometimes create slack in my line while my 3 inch crawfish drifts or sits. This assists two things. One, the bronzie( in SE MN I call them “greenies”) won’t feel me when he sniffs and picks the crawfish. Two, the additional slack permits me to observe my line twitch or move when the fish grabs hold! Reel in the slack, trying not to let him know your there, then SLAM!!! He’s on!!!
Remember patience is extremely important this time of year. If everthing falls into place, and you feel like you have found the right hole, fish it a little longer! In fact, talk yourself out of leaving the first time it comes to your mind!!!
Keep the rods bendin’!!!
Jim W