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Fishing Mountain Lake: what the data says
9-acre lake near Ontario. The lake tops out around 29 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. Here is how the season plays out for each species, straight from the data behind the map.
Yellow Perch fishing at Mountain Lake
In spring, yellow perch run shallow here, mostly 3 to 12 ft. Summer pushes them deeper, 9 to 29 ft, and winter fish settle into 9 to 29 ft. Deep basin is the standout, a deep basin at roughly 25 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 12 ft | midday & dawn | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 9 to 29 ft | dawn | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 9 to 29 ft | midday | Jigging spoon (small), Perch rig / spreader |
| Winter | 9 to 29 ft | midday & dawn | Tungsten jig + spikes, Rattle spoon (small) |
Largemouth Bass fishing at Mountain Lake
Spring largemouth bass on Mountain Lake hold shallow, usually 2 to 10 ft. They move out to 8 to 20 ft in summer and finish the year down in 9 to 29 ft. The spot to know is Main-lake point, a point in about 8 ft of water that rates prime for largemouth bass in fall. Plan around early morning and the evening in the warm months. Tie on a texas-rigged 10" worm or a deep-diving crankbait and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 9 to 29 ft | midday | Blade bait, Jigging spoon |
Brown Bullhead fishing at Mountain Lake
Spring brown bullhead on Mountain Lake hold shallow, usually 2 to 8 ft. They move out to 3 to 12 ft in summer and finish the year down in 10 to 25 ft. Deep basin is the standout, a deep basin at roughly 25 ft, rated prime for winter brown bullhead. Best bite is after dark and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | |
| Summer | 3 to 12 ft | night & dusk | |
| Fall | 5 to 15 ft | dusk | |
| Winter | 10 to 25 ft | midday |
Notable structure
- Deep basin: deep basin, around 25 ft
- Break off the point: drop-off, around 13 ft
- Main-lake point: point, around 8 ft
Common questions
How deep is Mountain Lake?
Mountain Lake is about 29 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 Mountain Lake?
Anglers target largemouth bass, yellow perch, brown bullhead on Mountain Lake.
Where is the best fishing spot on Mountain Lake?
Deep basin is the top-rated area: a deep basin in about 25 ft of water that rates prime for yellow perch in fall. Open the map above to see every rated spot for each species and season.
When is the best time to fish Mountain Lake?
For yellow perch, the summer bite is best in 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
NL · Tea Lake · Burrows Lake · Horseshoe Lake · MacLean Lake · Gloucester Pool
See how Mountain Lake stacks up: best largemouth bass lakes in Ontario · best yellow perch lakes in Ontario · best brown bullhead lakes in Ontario
Browse all Ontario fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.