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Rating depth structure for largemouth bass.
Recent public catches load as you reach this section.
81-acre lake near Grant County. The lake tops out around 10 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What follows comes from the same scoring engine that paints the spots above.
Traced from the shoreline, Stan Coffin Lake runs 81 acres with 1.6 miles of edge. At index 1.3 the outline is almost a bowl — read the depth changes, not the shoreline. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. Tip to tip the water measures near 0.7 mi with a 0.3-mi widest point. The water lies in Grant County. For a second option, Quincy Lake lies 1 mi south.
In spring, channel catfish run shallow here, mostly 3 to 10 ft. Summer keeps them at 3 to 10 ft, and they winter in 3 to 10 ft. Deep basin is the standout, a deep basin at roughly 10 ft, rated prime for winter channel catfish. Time it for after dark and the evening.
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 10 ft chart-limited; documented 3 to 12 ft | dusk | open water | |
| Summer | 3 to 10 ft chart-limited; documented 8 to 25 ft | night & dusk | Deep basin (10 ft) | |
| Fall | 3 to 10 ft chart-limited; documented 10 to 30 ft | dusk | Deep basin (10 ft) | |
| Winter | 3 to 10 ft chart-limited; documented 20 to 40 ft | midday | Deep basin (10 ft) |
The spring pattern is a shallow one: bluegill in 1 to 6 ft. As the season builds they drop to 3 to 10 ft, wintering in 3 to 10 ft. Top water on the chart: Shallow bay flat, a weed flat in the 1 ft range, prime in spring. Time it for early morning and the evening. Summer baits: a small sponge spider (fly) or a micro tube jig 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 | 1 to 6 ft | midday & dusk | Shallow bay flat (1 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 3 to 10 ft chart-limited; documented 4 to 15 ft | dawn & dusk | Shallow bay flat (1 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 3 to 10 ft chart-limited; documented 6 to 18 ft | midday | Break off the point (10 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 3 to 10 ft chart-limited; documented 10 to 25 ft | midday | Deep basin (10 ft) | Tungsten ice jig + plastic, Tiny spoon |
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. Summer keeps them at 3 to 10 ft, and they winter in 3 to 10 ft. Break off the point is the standout, a drop-off at roughly 10 ft, rated prime for winter 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 (1 ft) | Spinnerbait, Chatterbait |
| Summer | 3 to 10 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Break off the point (10 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 3 to 10 ft chart-limited; documented 4 to 15 ft | midday & dawn | Main-lake point (1 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 3 to 10 ft chart-limited; documented 15 to 35 ft | midday | Break off the point (10 ft) | Blade bait, Jigging spoon |
Count 5 structure marks on this chart. The deepest, Deep basin, sits near 10 ft.
Access data: Washington WDFW — Water Access Sites. 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 Stan Coffin Lake specifically, so confirm the current rules before you fish.
Check the official Washington fishing regulations →
Stan Coffin Lake is about 10 ft (3 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 channel catfish, bluegill, largemouth bass on Stan Coffin Lake.
Deep basin is the top-rated area: a deep basin in about 10 ft of water that rates prime for channel catfish in winter. The map above holds the full rated-spot list for every species and season.
For channel catfish, the summer bite is best in after dark 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 Stan Coffin 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.
Quincy Lake 1 mi · Burke Lake 1 mi · Evergreen Reservoir 1 mi · Crater Lake 7 mi · Meadow Lake 20 mi · Lake Cortez 21 mi · Moses Lake 26 mi · Soap Lake 26 mi · Potholes Reservoir 29 mi · Alkali Lake 33 mi · Upper Goose Lake 33 mi · Lower Goose Lake 33 mi
See how Stan Coffin Lake stacks up: best largemouth bass lakes in Washington · best bluegill lakes in Washington · best channel catfish lakes in Washington
More water nearby: Grant County fishing maps (18 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.