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1,738-acre lake near Pend Oreille County. The lake tops out around 320 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The rest of this page walks each species through its year, using the map's own scoring.
Drawn out, this is 1,738 acres of water rimmed by 7.6 miles of bank. Nearly circular (index 1.3), so the story is the bottom, not the bank. About 3% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. End to end it runs roughly 3.3 mi, about 1.1 mi across. The water lies in Pend Oreille County. Closest neighbour on DepthScout: Mill Pond, 3 mi north of here.
In spring, rainbow trout run shallow here, mostly 5 to 20 ft. Midsummer fish sit out in 8 to 30 ft before dropping to 8 to 40 ft for winter. Fall rainbow trout concentrate at Secondary point, a prime-rated point around 23 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a dodger + spoon (deep troll) or a flutter spoon most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Secondary point (23 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Secondary point (23 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Secondary point (23 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | open water | Jigging spoon, Tube jig (white) |
When the water first warms, brown trout slide up into 3 to 25 ft. Summer is a 25 to 60 ft game here, winter a 5 to 35 ft one. Start at Secondary point. It's a point holding about 23 ft of water and rates prime come spring. The feeding windows run after dark and early morning. Keep a spoon at the thermocline or a deep stickbait (night) rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Secondary point (23 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 25 to 60 ft | night & dawn | Main-lake point (55 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 5 to 30 ft | dusk & dawn | Secondary point (23 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 5 to 35 ft | dawn | open water | Jigging spoon, Small stickbait (slow) |
Spring puts kokanee in skinny water — 10 to 30 ft is the zone. Warm water sends them out to 30 to 70 ft; cold water stacks them in 20 to 80 ft. Plan around early morning in the warm months. A dodger + pink/orange squid on downrigger or a kokanee bug + corn covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | open water | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 30 to 70 ft | dawn | open water | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 5 to 40 ft | dawn | open water | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 20 to 80 ft | dawn | open water | Small glow jig + corn or maggot, Tiny spoon |
Sullivan Lake carries 7 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 320 ft down.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
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 Sullivan Lake specifically, so confirm the current rules before you fish.
Check the official Washington fishing regulations →
Sullivan Lake is about 320 ft (98 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 rainbow trout, brown trout, kokanee on Sullivan Lake.
Secondary point is the top-rated area: a point in about 23 ft of water that rates prime for rainbow trout in fall. Open the map above to see every rated spot for each species and season.
For rainbow 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.
Fishing on Sullivan 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.
Mill Pond 3 mi · Lomond Lake 13 mi, BC · Big Meadow Lake 14 mi · Deep Lake 15 mi · Lake Leo 15 mi · Rosebud Lake 16 mi, BC · Lake Heritage 16 mi · Cedar Lake 16 mi · Lake Thomas 17 mi · Gillette Lake 18 mi · Sherry Lake 18 mi · Boundary Lake 22 mi, BC
See how Sullivan Lake stacks up: best rainbow trout lakes in Washington · best brown trout lakes in Washington · best kokanee lakes in Washington
More water nearby: Pend Oreille County fishing maps (11 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.