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56-acre lake near Snohomish. The lake tops out around 25 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Species by species, here's what the data says the year looks like.
Drawn out, this is 56 acres of water rimmed by 1.1 miles of bank. A shoreline index of 1.1 says round and simple: fish relate to depth changes here, not shoreline features. Roughly 50% of the water is 15 ft or less, the band where the food chain lives. Call it 0.4 mi long by 0.3 mi wide at the broadest reach. The water lies in Snohomish County. For a second option, Panther Lake lies 4 mi east.
Early season cutthroat trout use the shallows, holding in 3 to 15 ft. Summer is a 7 to 25 ft game here, winter a 6 to 25 ft one. The chart's best answer is Break off the point — drop-off, 21 ft, prime for summer. Best bite is early morning and the evening. Tie on a trolled spoon (small) or an inline spinner and you're in the game.
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 | 3 to 15 ft | dawn & dusk | Main-lake point (5 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 7 to 25 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Break off the point (21 ft) | Trolled spoon (small), Inline spinner |
| Fall | 5 to 25 ft | dawn & dusk | Main-lake point (5 ft) | Casting spoon, Inline spinner |
| Winter | 6 to 25 ft chart-limited; documented 10 to 40 ft | dawn | Break off the point (21 ft) | Small jigging spoon, Marabou jig |
The spring pattern is a shallow one: rainbow trout in 5 to 20 ft. Midsummer fish sit out in 7 to 25 ft before dropping to 5 to 25 ft for winter. The spot to know is Break off the point, a drop-off in about 21 ft of water that rates prime for rainbow trout in winter. Plan around early morning and the evening in the warm months. Summer baits: a dodger + spoon (deep troll) or a flutter spoon gets it done.
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 | 5 to 20 ft | dawn & dusk | Main-lake point (5 ft) | Inline spinner (silver), Small spoon |
| Summer | 7 to 25 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Break off the point (21 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 7 to 25 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Secondary point (6 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 5 to 25 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (21 ft) | Jigging spoon, Tube jig (white) |
The spring pattern is a shallow one: brown bullhead in 2 to 8 ft. As the season builds they drop to 3 to 12 ft, wintering in 10 to 25 ft. Top water on the chart: Deep basin, a deep basin in the 25 ft range, prime in winter. Time it for after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (4 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (4 ft) | |
| Fall | 5 to 15 ft | dusk | Back-bay flat (5 ft) | |
| Winter | 10 to 25 ft | midday | Deep basin (25 ft) |
Spring puts crappie in skinny water — 2 to 8 ft is the zone. As the season builds they drop to 10 to 25 ft, wintering in 8 to 25 ft. Winter crappie concentrate at Deep basin, a prime-rated deep basin around 25 ft. Warm-month bites cluster around early morning and the evening. A jig trolled/spider-rigged or a small crankbait (trolled) covers the summer program.
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 | 2 to 8 ft | midday & dawn | Shallow bay flat (4 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Break off the point (21 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Dock / pier line (10 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 8 to 25 ft chart-limited; documented 15 to 35 ft | midday | Deep basin (25 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 8 to 25 ft. Shallow bay flat is the standout, a weed flat at roughly 4 ft, rated prime for spring largemouth bass. Time it for early morning and the evening. You won't need more than a texas-rigged 10" worm or a deep-diving crankbait most summer days.
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 | 2 to 10 ft | dawn & dusk | Shallow bay flat (4 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Break off the point (21 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (5 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 8 to 25 ft chart-limited; documented 15 to 35 ft | midday | Break off the point (21 ft) | Blade bait, Jigging spoon |
When the water first warms, pumpkinseed slide up into 1 to 8 ft. By summer they slide out to 2 to 10 ft, and by winter most fish are in 6 to 18 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 4 ft that scores prime in spring. In summer the feeding windows fall in the evening and early morning. Keep a micro tube or a sponge spider (fly) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Shallow bay flat (4 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (4 ft) | Micro tube, Sponge spider (fly) |
| Fall | 4 to 14 ft | dusk & dawn | Shallow bay flat (4 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 6 to 18 ft | dawn | Back-bay flat (5 ft) | Tungsten ice jig + plastic, Tiny spoon |
Blackmans Lake also holds yellow perch (8 to 25 ft in summer). Pick any of them on the map above for rated spots and bait picks.
7 pieces of structure are mapped here — Deep basin, around 25 ft, is the deepest of them.
| Date | Species | Count | Size |
|---|---|---|---|
| Apr 6 | Rainbow trout | 1,580 | — |
| Mar 17 | Rainbow trout | 3,420 | — |
| Dec 3, 2025 | Cutthroat trout | 9,207 | — |
| Nov 12, 2025 | Rainbow trout | 605 | — |
| Oct 14, 2025 | Rainbow trout | 890 | — |
Source: WDFW fish-stocking reports, retrieved 2026-09-23.
Season dates, license requirements, and size and bag limits for Washington waters are set by the Washington Department of Fish and Wildlife — and special regulations can apply to Blackmans Lake specifically, so confirm the current rules before you fish.
Check the official Washington fishing regulations →
Blackmans Lake is about 25 ft (8 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 cutthroat trout, rainbow trout, brown bullhead, crappie, largemouth bass, pumpkinseed, yellow perch on Blackmans Lake.
Break off the point is the top-rated area: a drop-off in about 21 ft of water that rates prime for cutthroat trout in summer. Every other rated spot, per species and season, is on the map above.
For cutthroat trout, 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.
Yes — per WDFW fish-stocking reports records, Blackmans Lake was most recently stocked Apr 6 with 1,580 rainbow trout. The full stocking history is listed above.
Fishing on Blackmans Lake is regulated by the Washington Department of Fish and Wildlife. Check the official Washington regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Panther Lake 4 mi · Lake Stevens 5 mi · Flowing Lake 5 mi · Storm Lake 6 mi · Chain Lake 6 mi · Wagner Lake 8 mi · Lake Cassidy 8 mi · Stickney Lake 8 mi · Lake Cochran 9 mi · Martha Lake 9 mi · Lake Roesiger 9 mi · Devils Lake 9 mi
See how Blackmans Lake stacks up: best largemouth bass lakes in Washington · best crappie lakes in Washington · best rainbow trout lakes in Washington · best yellow perch lakes in Washington
More water nearby: Snohomish County fishing maps (28 charts). Browse all Washington 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.