Shared by DepthScout anglers. Exact spots stay private, always.
16-acre lake near Montana. The lake tops out around 30 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. What follows comes from the same scoring engine that paints the spots above.
Spring walleye on Owl Lake (Sweet Grass) hold shallow, usually 4 to 15 ft. They move out to 9 to 30 ft in summer and finish the year down in 9 to 30 ft. The spot to know is Deep basin, a deep basin in about 30 ft of water that rates prime for walleye in winter. Plan around the evening and early morning in the warm months. 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 | 9 to 30 ft | dusk & dawn | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 9 to 30 ft | dusk & night | Jigging rap, Jig + big minnow |
| Winter | 9 to 30 ft | dusk & dawn | Jigging spoon + minnow head, Rattle bait |
Start shallow in spring: northern pike sit in 2 to 8 ft that time of year. By summer they slide out to 8 to 20 ft, and by winter most fish are in 5 to 15 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 8 ft that scores prime 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 |
In spring, yellow perch run shallow here, mostly 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 9 to 30 ft. Shallow bay flat is the standout, a weed flat at roughly 8 ft, rated prime for spring yellow perch. In summer the feeding windows fall in early morning. Tie on a drop-shot micro plastics or a small spoon tipped with worm and you're in the game.
| 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 | 9 to 30 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 9 to 30 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Spring smallmouth bass on Owl Lake (Sweet Grass) hold shallow, usually 3 to 12 ft. By summer they slide out to 10 to 30 ft, and by winter most fish are in 9 to 30 ft. Deep basin is the standout, a deep basin at roughly 30 ft, rated good for winter smallmouth bass. In summer the feeding windows fall in early morning and the evening. Tie on a drop shot (goby/minnow) or a ned rig and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Ned rig, Tube jig |
| Summer | 10 to 30 ft | dawn & dusk | Drop shot (goby/minnow), Ned rig |
| Fall | 8 to 25 ft | midday & dawn | Jerkbait, Blade bait |
| Winter | 9 to 30 ft | midday | Blade bait, Hair jig |
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. They move out to 8 to 30 ft in summer and finish the year down in 6 to 30 ft. Deep basin is the standout, a deep basin at roughly 30 ft, rated prime for winter rainbow trout. In summer the feeding windows fall in early morning and the evening. Summer baits: a dodger + spoon (deep troll) or a flutter spoon gets it done.
| 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 | 9 to 30 ft | dawn & dusk | Casting spoon, Jerkbait over shoals |
| Winter | 6 to 30 ft | dawn | Jigging spoon, Tube jig (white) |
Start shallow in spring: lake trout sit in 8 to 30 ft that time of year. Summer fish stay in 9 to 30 ft, and winter fish hold in 8 to 30 ft. The spot to know is Deep basin, a deep basin in about 30 ft of water that rates prime for lake trout in summer. Plan around early morning in the warm months. Summer baits: a white tube jig (deep) or a magnum spoon on downrigger gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 8 to 30 ft | dawn & dusk | Casting spoon over shoals, Jerkbait (shallow) |
| Summer | 9 to 30 ft | dawn | White tube jig (deep), Magnum spoon on downrigger |
| Fall | 6 to 30 ft | dusk & dawn | Heavy casting spoon, Jigging rap over reefs |
| Winter | 8 to 30 ft | dawn | White tube jig, Airplane jig |
Owl Lake (Sweet Grass) also holds crappie (10 to 25 ft in summer), channel catfish (8 to 25 ft in summer). Pick any of them on the map above for rated spots and bait picks.
How deep is Owl Lake (Sweet Grass)?
Owl Lake (Sweet Grass) is about 30 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 Owl Lake (Sweet Grass)?
Anglers target smallmouth bass, walleye, northern pike, crappie, channel catfish, rainbow trout, yellow perch, lake trout on Owl Lake (Sweet Grass).
Where is the best fishing spot on Owl Lake (Sweet Grass)?
Deep basin is the top-rated area: a deep basin in about 30 ft of water that rates prime for walleye in winter. Open the map above to see every rated spot for each species and season.
When is the best time to fish Owl Lake (Sweet Grass)?
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.
Wounded Man Lake · Fish Lake (Sweet Grass) · Rainbow Lake, Upper (Rainbow #2) · Jordan Lake (Sweet Grass) · Mirror Lake · Pentad Lake
See how Owl Lake (Sweet Grass) stacks up: best smallmouth bass lakes in Montana · best walleye lakes in Montana · best northern pike lakes in Montana · best crappie 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.