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142-acre lake near Three Lakes. The lake tops out around 69 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's the year, species by species, as the scoring engine sees it.
Traced from the shoreline, Flowing Lake runs 142 acres with 2 miles of edge. Nearly circular (index 1.2), so the story is the bottom, not the bank. The shallow band under 15 ft claims about 31% of the surface — that's where the groceries are. Figure 0.7 mi of water from one end to the other, 0.5 mi at the beam. The water lies in Snohomish County. For a second option, Panther Lake lies 1 mi west.
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. Warm water sends them out to 8 to 30 ft; cold water stacks them in 8 to 40 ft. Top water on the chart: Main-lake point, a point in the 1 ft range, good in spring. Fish it in early morning and the evening and you'll meet the bite. Throw a dodger + spoon (deep troll) or a flutter spoon until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (1 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | open water | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (1 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (58 ft) | Jigging spoon, Tube jig (white) |
The chart marks 6 structure features on Flowing Lake; the deepest is Deep basin at about 69 ft.
Access data: Washington WDFW — Water Access Sites. Confirm conditions and fees locally before you launch.
| Date | Species | Count | Size |
|---|---|---|---|
| May 21 | Rainbow trout | 17,250 | — |
| May 3 | Rainbow trout | 2,000 | — |
| Apr 7 | Rainbow trout | 4,200 | — |
Source: WDFW fish-stocking reports, retrieved 2026-08-18.
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 Flowing Lake specifically, so confirm the current rules before you fish.
Check the official Washington fishing regulations →
Flowing Lake is about 69 ft (21 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target rainbow trout on Flowing Lake.
Main-lake point is the top-rated area: a point in about 1 ft of water that rates good for rainbow trout in spring. The map above holds the full rated-spot list for every 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.
Yes — per WDFW fish-stocking reports records, Flowing Lake was most recently stocked May 21 with 17,250 rainbow trout. The full stocking history is listed above.
Fishing on Flowing 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 1 mi · Storm Lake 1 mi · Chain Lake 3 mi · Lake Cochran 4 mi · Lake Roesiger 4 mi · Blackmans Lake 5 mi · Wagner Lake 5 mi · Lake Stevens 6 mi · Bosworth Lake 7 mi · Lake Cassidy 9 mi · Devils Lake 10 mi · Echo Lake 11 mi
See how Flowing Lake stacks up: best rainbow trout lakes in Washington
More water nearby: Snohomish County fishing maps (28 charts). Browse all Washington fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.