Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Recent public catches load as you reach this section.
17,800-acre reservoir near Chester. The lake tops out around 110 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Below is the species-by-species picture, pulled from the same data the map uses.
The drawn water covers 22,703 acres wrapped in 267.2 miles of bank, with 22 islands in the mix. That shoreline is heavily fingered (development index 12.7) — bays, points and pockets everywhere, which multiplies the fishable edge. 64% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Figure 26.5 mi of water from one end to the other, 10.3 mi at the beam. Toole County claims this one. Lake Frances sits 49 mi west — the closest neighbouring chart.
The spring pattern is a shallow one: walleye in 4 to 15 ft. As the season builds they drop to 15 to 35 ft, wintering in 20 to 40 ft. Top water on the chart: Sharp break, a drop-off in the 22 ft range, prime in fall. Time it for 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 | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Rock reef (12 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Sharp break (22 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Sharp break (22 ft) | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Sharp break (22 ft) | Jigging spoon + minnow head, Rattle bait |
Early season northern pike use the shallows, holding in 2 to 8 ft. Expect a summer slide to 8 to 20 ft, then a winter hold in 5 to 15 ft. Put Weed flat first on the milk run — a weed flat near 7 ft that grades prime for spring. In summer the feeding windows fall in 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 | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Weed flat (7 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Weed flat (7 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Weed flat (7 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Weed flat (7 ft) | Tip-ups, Large jigging spoon |
In spring, yellow perch run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 10 to 30 ft, and winter fish settle into 15 to 35 ft. Weed flat is the standout, a weed flat at roughly 7 ft, rated prime for spring yellow perch. Time it for early morning. You won't need more than a drop-shot micro plastics or a small spoon tipped with worm most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | midday & dawn | Weed flat (7 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 10 to 30 ft | dawn | Sharp break (22 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 12 to 35 ft | midday | Sharp break (22 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 15 to 35 ft | midday & dawn | Sharp break (22 ft) | Tungsten jig + spikes, Rattle spoon (small) |
When the water first warms, rainbow trout slide up into 5 to 20 ft. Summer is an 8 to 30 ft game here, winter an 8 to 40 ft one. Start at Rock reef. It's a rock pile holding about 12 ft of water and rates prime come fall. The feeding windows run early morning and the evening. Keep a dodger + spoon (deep troll) or a flutter spoon rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Shoreline point (5 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Rock reef (12 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Rock reef (12 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Sharp break (22 ft) | Jigging spoon, Tube jig (white) |
The spring pattern is a shallow one: sauger in 4 to 18 ft. Midsummer fish sit out in 10 to 30 ft before dropping to 15 to 45 ft for winter. The spot to know is Rock reef, a rock pile in about 12 ft of water that rates prime for sauger in spring. Plan around early morning and the evening in the warm months. Summer baits: a bottom bouncer + crawler or a 3-way rig with stickbait gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 18 ft | dawn & dusk | Rock reef (12 ft) | 3/8 oz jig + ringworm, Hair jig + minnow |
| Summer | 10 to 30 ft | dawn & dusk | Sharp break (22 ft) | Bottom bouncer + crawler, 3-way rig with stickbait |
| Fall | 12 to 35 ft | dusk & dawn | Sharp break (22 ft) | Jig + big minnow, Blade bait |
| Winter | 15 to 45 ft | dusk | Sharp break (22 ft) | Heavy jigging spoon, Jig + minnow (vertical) |
Spring burbot on Tiber Reservoir hold shallow, usually 25 to 70 ft. They move out to 33 to 110 ft in summer and finish the year down in 15 to 60 ft. Put Deep basin first on the milk run — a deep basin near 91 ft that grades prime for summer. The feeding windows run after dark and midday. The summer box starts with a heavy jig + cut bait.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Break off the point (73 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 33 to 110 ft chart-limited; documented 50 to 120 ft | night & midday | Deep basin (91 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Break off the point (73 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Rock reef (12 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Tiber Reservoir also holds channel catfish (8 to 25 ft in summer), cisco (lake herring) (40 to 80 ft in summer), common carp (3 to 15 ft in summer), crappie (10 to 25 ft in summer), lake trout (33 to 110 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Tiber Reservoir carries 16 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 91 ft down.
Season dates, license requirements, and size and bag limits for Montana waters are set by the Montana Fish, Wildlife & Parks — and special regulations can apply to Tiber Reservoir specifically, so confirm the current rules before you fish.
Check the official Montana fishing regulations →
Tiber Reservoir is about 110 ft (34 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target walleye, northern pike, yellow perch, rainbow trout, sauger, burbot, channel catfish, cisco (lake herring), common carp, crappie, lake trout on Tiber Reservoir.
Sharp break is the top-rated area: a drop-off in about 22 ft of water that rates prime for walleye in fall. The interactive chart above rates every spot for each species and season.
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.
Fishing on Tiber Reservoir is regulated by the Montana Fish, Wildlife & Parks. Check the official Montana regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Lake Frances 49 mi · Bailey Reservoir 50 mi · Wadsworth Lake 60 mi · Lewis Pond South 61 mi · Ostle Reservoir 72 mi · Pishkun Reservoir 76 mi · Split Rock Lake 79 mi · Willow Creek Reservoir 81 mi · Tunnel Lake 82 mi · Gollaher Reservoir 82 mi · Kolar Reservoir 2 82 mi · Missouri River 88 mi
See how Tiber Reservoir stacks up: best walleye lakes in Montana · best sauger lakes in Montana · best northern pike lakes in Montana · best crappie lakes in Montana
Browse all Montana fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.