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39-acre reservoir near Wisconsin. The lake tops out around 17 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Below is the species-by-species picture, pulled from the same data the map uses.
Start shallow in spring: rainbow trout sit in 4 to 17 ft that time of year. Summer fish stay in 5 to 17 ft, and winter fish hold in 3 to 17 ft. Break off the point is the standout, a drop-off at roughly 8 ft, rated prime for winter rainbow trout. Plan around early morning and the evening in the warm months. A dodger + spoon (deep troll) or a flutter spoon covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 17 ft | dawn & dusk | Inline spinner (silver), Small spoon |
| Summer | 5 to 17 ft | dawn & dusk | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 5 to 17 ft | dawn & dusk | Casting spoon, Jerkbait over shoals |
| Winter | 3 to 17 ft | dawn | Jigging spoon, Tube jig (white) |
In spring, yellow perch run shallow here, mostly 3 to 12 ft. By summer they slide out to 5 to 17 ft, and by winter most fish are in 5 to 17 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 3 ft that scores prime in spring. Plan around early morning in the warm months. Summer baits: a drop-shot micro plastics or a small spoon tipped with worm gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 5 to 17 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 5 to 17 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 5 to 17 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Spring northern pike on Glen Loch Flowage hold shallow, usually 2 to 8 ft. Summer pushes them deeper, 5 to 17 ft, and winter fish settle into 5 to 15 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring northern pike. Best bite is early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 5 to 17 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 5 to 17 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Tip-ups, Large jigging spoon |
Spring largemouth bass on Glen Loch Flowage hold shallow, usually 2 to 10 ft. By summer they slide out to 5 to 17 ft, and by winter most fish are in 5 to 17 ft. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for largemouth bass in spring. In summer the feeding windows fall in early morning and the evening. Summer baits: a texas-rigged 10" worm or a deep-diving crankbait gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 5 to 17 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 5 to 17 ft | midday | Blade bait, Jigging spoon |
Start shallow in spring: crappie sit in 2 to 8 ft that time of year. By summer they slide out to 5 to 17 ft, and by winter most fish are in 5 to 17 ft. If you only fish one area, make it Deep basin: a deep basin around 14 ft that scores prime in winter. In summer the feeding windows fall in early morning and the evening. A jig trolled/spider-rigged or a small crankbait (trolled) covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 5 to 17 ft | dawn & dusk | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 5 to 17 ft | dawn | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 5 to 17 ft | midday | Tungsten jig + soft plastic, Tiny jigging spoon |
In spring, bluegill run shallow here, mostly 1 to 6 ft. By summer they slide out to 4 to 15 ft, and by winter most fish are in 5 to 17 ft. Shallow bay flat is the standout, a weed flat at roughly 3 ft, rated prime for spring bluegill. In summer the feeding windows fall in early morning and the evening. Summer baits: a small sponge spider (fly) or a micro tube jig gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Small sponge spider (fly), Micro tube jig |
| Fall | 5 to 17 ft | midday | Micro jig + waxworm, Small spoon tipped |
| Winter | 5 to 17 ft | midday | Tungsten ice jig + plastic, Tiny spoon |
How deep is Glen Loch Flowage?
Glen Loch Flowage is about 17 ft at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
What fish are in Glen Loch Flowage?
Anglers target largemouth bass, northern pike, crappie, bluegill, rainbow trout, yellow perch on Glen Loch Flowage. These come from the Wisconsin DNR's per-lake fish listing; where the DNR lists a group (panfish, catfish, trout) the specific species are resolved from Wisconsin's fish distribution by the lake's location, depth and habitat.
Where is the best fishing spot on Glen Loch Flowage?
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Glen Loch Flowage?
For rainbow trout, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
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See how Glen Loch Flowage stacks up: best largemouth bass lakes in Wisconsin · best northern pike lakes in Wisconsin · best crappie lakes in Wisconsin · best bluegill lakes in Wisconsin
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