Photo by Ron Sinfelt.

Largemouth bass can get finicky in the late fall. Once the leaves start falling, the slightest change in temperature combines with a major change in the photoperiod of the day to alter bass feeding patterns at reservoirs dramatically. To successfully find fall bass on big water, anglers need to focus on a combination of baitfish in relation to transitional zones and large main-lake structure.

Main-lake points and creeks entering the main body of the lake are the important areas to fish at this time of year as they give the fish access to shallow and deep water and hold fair to good amounts of baitfish. Throw large Beetle Spins and wacky worms during the midday period; fish topwaters and buzzbaits early and late. Another viable option: Fish the riprap and bulkheads along some of the big marinas, especially in the evenings. These areas will hold many bass, especially after a late frontal system passes through. The hard part is patterning the fish.

For these situations, I like to use a slow-sinking lure like a Slug-Go or a wacky worm, because they appeal both to cold-challenged, slow-moving fish and to aggressive feeders.

Between fronts, look for baitfish bunched up around the secondary points and start fishing a crankbait like a Bomber 9A with a slow retrieve. If you find active fish, switch to something like a Rat-L-Trap and boost the retrieve up to medium speed. Sometimes the baitfish are spread along the shorelines, stacked horizontally instead of vertically. If this is the situation, the bass can be scattered as well, so try trolling. Use the Bomber 9A or a 1/4-ounce Rat-L-Trap trolled at a slow pace. If you catch a fish, throw over a marker buoy and hit that spot again.

It is best to employ spinners when the water is up high and you have baitfish clinging tight to the shoreline. Cast parallel to the shore and work it back at a medium pace for best results.

Another method that may seem strange for fall but that works quite well is "flipping" for bass in deep brush. Many anglers know bass hold tight to brush that runs along shorelines of reservoirs in the spring but they will also hold up between fronts in the spring. If you stop to think about it, late-fall and early-spring weather patterns are very similar, so it can pay to use those tactics you use in the spring.

The best spot to look is near brush that rests on a ledge at the end of a point near a creek channel. This is especially true late in the evenings when bass often move from the deep to the shallows to feed. Baitfish stack up in these areas, which in turn draws in the bass. By flipping a large jig-and-pig combo or a live crawfish rigged on a 1/2-ounce jighead, it is possible to catch good numbers of bass

Fishing guide Roger Bacon turned me onto some outstanding brush fishing for bass by accident back in the summer of 2000. While fishing with him over artificial brushpiles, I caught a couple of largemouth bass and figured out quickly that they hang around brush just as much as any other game fish. Bass like structure, too, and they, of course, prey on baitfish and the panfish as well.

According to Bacon, anglers unfamiliar with brushpile locations should search the open lake and large coves, looking for submerged marker buoys covered with green slime. "These are the ones some of the hard-core crappie anglers put out and they usually hold plenty of fish," he said.

Some of these brushpiles can be quite large, and there is much structure to cover. Anglers should stick with the main brush and not worry about the smaller piles on the outside. Most of the bass tend to stick around the main brush, and if anglers are baiting the brush for other species, they usually do so on the main pile, because it's easier to position a boat over. This will draw in baitfish, which in turn draw in bass.

Brushpile bass are famous for biting at specific depth when they get choosy, say 14 feet, and ignoring anything they have to move very far to ingest. That is why boat positioning is such an important part of brushpile fishing. If you get right over brush and vertically drop a live shiner or run a crankbait by it, your chances of catching a mess of fish increases greatly. The same is true of fish around natural structure in relation to dropoffs. A good way to fish these spots is to use a depthfinder to locate those that have big schools of baitfish around them. Bass don't hang around spots that are devoid of baitfish very long, and the bigger the bunch of bait, the more fish will be around.

A dropoff around a river channel may not be very deep -- so don't go looking for a crater. A difference of two or three feet in depth is major when putting things in perspective. Micro-crankbaits (like a Yozuri Snap Bean in the 1/32- or 1/16-ounce size) are great for fishing along main river channels to locate fish suspended over deep water. I started using them for crappie but have also found them effective for catching brushpile bass.