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Fishing Tiber Reservoir: what the data says
17,800-acre reservoir near Chester. The lake tops out around 110 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Below is the species-by-species picture, pulled from the same data the map uses.
Walleye fishing at Tiber Reservoir
In spring, walleye run shallow here, mostly 4 to 15 ft. They move out to 15 to 35 ft in summer and finish the year down in 20 to 40 ft. If you only fish one area, make it Rock reef: a rock pile around 8 ft that scores prime in spring. Best bite is the evening and early morning. Summer baits: a crawler harness on bottom bouncer or a deep crankbait (trolled) gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Northern Pike fishing at Tiber Reservoir
In spring, northern pike run shallow here, mostly 2 to 8 ft. They move out to 8 to 20 ft in summer and finish the year down in 5 to 15 ft. The spot to know is Shallow bay flat, a weed flat in about 4 ft of water that rates prime for northern pike in spring. In summer the feeding windows fall in early morning and the evening. A bucktail or a weedless spoon over cabbage covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Tip-ups, Large jigging spoon |
Yellow Perch fishing at Tiber Reservoir
Spring yellow perch on Tiber Reservoir hold shallow, usually 3 to 12 ft. They move out to 10 to 30 ft in summer and finish the year down in 15 to 35 ft. The spot to know is Shallow bay flat, a weed flat in about 4 ft of water that rates prime for yellow perch 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 | 10 to 30 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Rainbow Trout fishing at Tiber Reservoir
Spring rainbow trout on Tiber Reservoir hold shallow, usually 5 to 20 ft. By summer they slide out to 8 to 30 ft, and by winter most fish are in 8 to 40 ft. Rock reef is the standout, a rock pile at roughly 8 ft, rated prime for fall 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 | 5 to 20 ft | dawn & dusk | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Jigging spoon, Tube jig (white) |
Sauger fishing at Tiber Reservoir
Spring sauger on Tiber Reservoir hold shallow, usually 4 to 18 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 15 to 45 ft. The spot to know is Rock reef, a rock pile in about 8 ft of water that rates prime for sauger in spring. In summer the feeding windows fall in early morning and the evening. Summer baits: a bottom bouncer + crawler or a 3-way rig with stickbait gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 4 to 18 ft | dawn & dusk | 3/8 oz jig + ringworm, Hair jig + minnow |
| Summer | 10 to 30 ft | dawn & dusk | Bottom bouncer + crawler, 3-way rig with stickbait |
| Fall | 12 to 35 ft | dusk & dawn | Jig + big minnow, Blade bait |
| Winter | 15 to 45 ft | dusk | Heavy jigging spoon, Jig + minnow (vertical) |
Notable structure
- Deep basin: deep basin, around 105 ft
- Break off the point: drop-off, around 80 ft
- Sharp break: drop-off, around 69 ft
- Shallow feeding flat: feeding flat, around 27 ft
- Secondary point: point, around 24 ft
- Back-bay flat: weed flat, around 16 ft
- Shallow feeding flat: feeding flat, around 14 ft
- Rock reef: rock pile, around 8 ft
- Main-lake point: point, around 7 ft
- Rock reef: rock pile, around 7 ft
- Shoreline point: point, around 5 ft
- Shallow bay flat: weed flat, around 4 ft
Common questions
How deep is Tiber Reservoir?
Tiber Reservoir is about 110 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Tiber Reservoir?
Anglers target walleye, sauger, northern pike, rainbow trout, yellow perch on Tiber Reservoir.
Where is the best fishing spot on Tiber Reservoir?
Shallow bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for northern pike in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Tiber Reservoir?
For walleye, the summer bite is best in the evening and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Wadsworth Lake · Lewis Pond South · Lake Frances · Gollaher Reservoir · Bailey Reservoir · Missouri River
See how Tiber Reservoir stacks up: best walleye lakes in Montana · best sauger lakes in Montana · best northern pike lakes in Montana · best rainbow trout lakes in Montana
Browse all Montana fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.