Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Shared by DepthScout anglers. Exact spots stay private, always.
67-acre lake near Bonner. The lake tops out around 12 ft. Bathymetry on this water is estimated from its real outline and maximum depth. Use it to shortlist water, then verify with your electronics — and never navigate by it. Species by species, here's what the data says the year looks like.
The outline encloses 78 acres, worked by 1.5 miles of shoreline. Its 1.3 shoreline index means few bank features; the contours below do the pattern work. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. Call it 0.5 mi long by 0.4 mi wide at the broadest reach. It sits in Bonner County. Its nearest charted neighbour, Marshall Lake, is 11 mi to the west.
In spring, cutthroat trout run shallow here, mostly 2 to 12 ft. Summer keeps them at 3 to 12 ft, and they winter in 3 to 12 ft. Summer cutthroat trout concentrate at Break off the point, a prime-rated drop-off around 5 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a trolled spoon (small) or an inline spinner most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 12 ft | dawn & dusk | Main-lake point (8 ft) | Inline spinner (silver/gold), Small spoon |
| Summer | 3 to 12 ft | dawn & dusk | Break off the point (5 ft) | Trolled spoon (small), Inline spinner |
| Fall | 2 to 12 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon, Inline spinner |
| Winter | 3 to 12 ft | dawn | Break off the point (5 ft) | Small jigging spoon, Marabou jig |
Early season brook trout use the shallows, holding in 2 to 12 ft. Even in summer they hold at 4 to 12 ft; winter keeps them in 2 to 12 ft. Put Deep basin first on the milk run — a deep basin near 10 ft that grades prime for summer. In summer the feeding windows fall in early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 12 ft | dawn & dusk | Main-lake point (8 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 4 to 12 ft | dawn & dusk | Deep basin (10 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 12 ft | midday & dawn | Main-lake point (8 ft) | Small spoon (orange), Spinner |
| Winter | 2 to 12 ft | dawn | Deep basin (10 ft) | Small jigging spoon, Tungsten jig + plastic |
Spring rainbow trout on Blue Lake hold shallow, usually 3 to 12 ft. Depth-wise the year is flat: 3 to 12 ft in summer, 2 to 12 ft once it turns cold. The chart's best answer is Break off the point — drop-off, 5 ft, prime for winter. Prime time lands in early morning and the evening. The summer box starts with a dodger + spoon (deep troll) or a flutter spoon.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dawn & dusk | Main-lake point (8 ft) | Inline spinner (silver), Small spoon |
| Summer | 3 to 12 ft | dawn & dusk | Break off the point (5 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 3 to 12 ft | dawn & dusk | Main-lake point (8 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 2 to 12 ft | dawn | Break off the point (5 ft) | Jigging spoon, Tube jig (white) |
Come spring, look for chinook salmon tight to the bank in 2 to 12 ft. Through summer count on 4 to 12 ft; the winter hold is 4 to 12 ft. Start at Deep basin. It's a deep basin holding about 10 ft of water and rates prime come summer. Prime time lands in early morning and the evening. A flasher + fly (green/white) or a magnum spoon on downrigger is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 12 ft | dawn & dusk | Break off the point (5 ft) | Trolled spoon (orange/gold), Stickbait off planer boards |
| Summer | 4 to 12 ft | dawn & dusk | Deep basin (10 ft) | Flasher + fly (green/white), Magnum spoon on downrigger |
| Fall | 2 to 12 ft | dawn & dusk | Break off the point (5 ft) | J-plug (glow), Flasher + fly |
| Winter | 4 to 12 ft | midday | Deep basin (10 ft) | Small spoon on a slow troll, Stickbait deep |
Come spring, look for muskellunge tight to the bank in 3 to 12 ft. Through summer count on 4 to 12 ft; the winter hold is 4 to 12 ft. Start at Break off the point. It's a drop-off holding about 5 ft of water and rates prime come fall. Prime time lands in the evening and early morning. A double-10 bucktail or a topwater (walk-the-dog / creeper) is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Shallow bay flat (3 ft) | Smaller bucktail (#8 blades), 6" glide bait |
| Summer | 4 to 12 ft | dusk & dawn | Main-lake point (8 ft) | Double-10 bucktail, Topwater (walk-the-dog / creeper) |
| Fall | 3 to 12 ft | midday & dusk | Break off the point (5 ft) | Big rubber (Bull Dawg style), 10"+ glide bait |
| Winter | 4 to 12 ft | midday | Deep basin (10 ft) | Large rubber, crawled slow |
Come spring, look for channel catfish tight to the bank in 3 to 12 ft. Through summer count on 4 to 12 ft; the winter hold is 4 to 12 ft. If you only fish one area, make it Deep basin: a deep basin around 10 ft that scores prime in winter. Best bite is after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Shallow bay flat (3 ft) | |
| Summer | 4 to 12 ft | night & dusk | Deep basin (10 ft) | |
| Fall | 4 to 12 ft | dusk | Deep basin (10 ft) | |
| Winter | 4 to 12 ft | midday | Deep basin (10 ft) |
Blue Lake carries 6 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 10 ft down.
Season dates, license requirements, and size and bag limits for Idaho waters are set by the Idaho Fish and Game — and special regulations can apply to Blue Lake specifically, so confirm the current rules before you fish.
Check the official Idaho fishing regulations →
Blue Lake is about 12 ft (4 m) deep 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.
Anglers target cutthroat trout, brook trout, rainbow trout, chinook salmon, muskellunge, channel catfish on Blue Lake.
Break off the point is the top-rated area: a drop-off in about 5 ft of water that rates prime for cutthroat trout in summer. The interactive chart above rates every spot for each species and season.
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.
Fishing on Blue Lake is regulated by the Idaho Fish and Game. Check the official Idaho regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Marshall Lake 11 mi, WA · Round Lake 12 mi · Shepherd Lake 15 mi · South Skookum Lake 18 mi, WA · North Skookum Lake 18 mi, WA · Kelso Lake 19 mi · Diamond Lake 20 mi, WA · Davis Lake 22 mi, WA · Lake Pend Oreille 22 mi · Priest Lake 23 mi · Sacheen Lake 24 mi, WA · Fan Lake 31 mi, WA
See how Blue Lake stacks up: best channel catfish lakes in Idaho · best rainbow trout lakes in Idaho · best chinook salmon lakes in Idaho · best brook trout lakes in Idaho
More water nearby: Bonner County fishing maps (6 charts). Browse all Idaho fishing maps or see every water on DepthScout. 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.