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Fishing Split Rock Lake: what the data says
181-acre lake near Montana. The lake tops out around 11 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. Here is how the season plays out for each species, straight from the data behind the map.
Northern Pike fishing at Split Rock Lake
Start shallow in spring: northern pike sit in 2 to 8 ft that time of year. Summer pushes them deeper, 3 to 11 ft, and winter fish settle into 3 to 11 ft. Shallow bay flat is the standout, a weed flat at roughly 2 ft, rated prime for spring northern pike. Plan around early morning and the evening in the warm months. Summer baits: a bucktail or a weedless spoon over cabbage gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | #5 inline spinner, Spoon (red/white) |
| Summer | 3 to 11 ft | dawn & dusk | Bucktail, Weedless spoon over cabbage |
| Fall | 3 to 11 ft | midday & dawn | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 3 to 11 ft | midday | Tip-ups, Large jigging spoon |
Yellow Perch fishing at Split Rock Lake
In spring, yellow perch run shallow here, mostly 3 to 11 ft. Summer fish stay in 3 to 11 ft, and winter fish hold in 3 to 11 ft. Deep basin is the standout, a deep basin at roughly 11 ft, rated prime for fall yellow perch. Best bite is 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 11 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 3 to 11 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 3 to 11 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 3 to 11 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Notable structure
- Deep basin: deep basin, around 11 ft
- Break off the point: drop-off, around 6 ft
- Main-lake point: point, around 2 ft
- Secondary point: point, around 2 ft
- Shallow bay flat: weed flat, around 2 ft
- Back-bay flat: weed flat, around 2 ft
Common questions
How deep is Split Rock Lake?
Split Rock Lake is about 11 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 Split Rock Lake?
Anglers target northern pike, yellow perch on Split Rock Lake.
Where is the best fishing spot on Split Rock Lake?
Shallow bay flat is the top-rated area: a weed flat in about 2 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 Split Rock Lake?
For northern pike, 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.
Nearby waters
Pishkun Reservoir · Tunnel Lake · Willow Creek Reservoir · Gibson Reservoir · Ostle Reservoir · Bean Lake
See how Split Rock Lake stacks up: best northern pike lakes in Montana · best yellow perch 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.