Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Recent public catches load as you reach this section.
13-acre lake in Sudbury District, Ontario. The lake tops out around 23 ft. The depth chart comes from Ontario Ministry of Natural Resources and Forestry bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The depth data here comes from an MNRF lake survey by the Ontario MNRF. The season-by-season read for each species follows, from the map's own numbers.
The drawn water covers 13 acres wrapped in 1.9 miles of bank. A development index of 3.8 means a maze of bays and points: far more casting targets than a round bowl of the same size. Call it 0.6 mi long by 0.3 mi wide at the broadest reach. Sudbury District claims this one. Grab Lake sits 2 mi northwest — the closest neighbouring chart.
These fish are listed in an exact-water agency record as forage or ecological context. They are not target-species profiles and do not affect DepthScout's Prime, Good, or Fair spot ratings.
Official Ontario MNRF Fish ON-Line record. The listing documents source-recorded presence, not present abundance or guaranteed catchability.
When the water first warms, brook trout slide up into 2 to 15 ft. Summer is a 7 to 23 ft game here, winter a 3 to 20 ft one. Start at Deep basin. It's a deep basin holding about 15 ft of water and rates prime come summer. The feeding windows run early morning and the evening. Keep a small spoon fished deep or a trolled lake-clear wobbler + worm rigged through the warm months.
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 15 ft | dawn & dusk | Main-lake point (5 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 7 to 23 ft chart-limited; documented 10 to 30 ft | dawn & dusk | Deep basin (15 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (5 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Deep basin (15 ft) | Small jigging spoon, Tungsten jig + plastic |
Come spring, look for rainbow trout tight to the bank in 5 to 20 ft. They move out to 6 to 23 ft in summer and finish the year down in 5 to 23 ft. If you only fish one area, make it Break off the point: a drop-off around 7 ft that scores prime in winter. Best bite is early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon is the honest summer answer here.
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 | 6 to 23 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Break off the point (7 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 7 to 23 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Break off the point (7 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 5 to 23 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (7 ft) | Jigging spoon, Tube jig (white) |
Start shallow in spring: brown trout sit in 3 to 23 ft that time of year. They don't go far with the seasons — 7 to 23 ft covers summer, 3 to 23 ft covers winter. The spot to know is Break off the point, a drop-off in about 7 ft of water that rates prime for brown trout in summer. Warm-month bites cluster around after dark and early morning. Throw a spoon at the thermocline or a deep stickbait (night) until the fish tell you otherwise.
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 23 ft chart-limited; documented 3 to 25 ft | dawn & dusk | Main-lake point (5 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 7 to 23 ft chart-limited; documented 25 to 60 ft | night & dawn | Break off the point (7 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 4 to 23 ft chart-limited; documented 5 to 30 ft | dusk & dawn | Main-lake point (5 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 3 to 23 ft chart-limited; documented 5 to 35 ft | dawn | Break off the point (7 ft) | Jigging spoon, Small stickbait (slow) |
Come spring, look for landlocked salmon tight to the bank in 1 to 15 ft. They move out to 7 to 23 ft in summer and finish the year down in 6 to 23 ft. If you only fish one area, make it Deep basin: a deep basin around 15 ft that scores prime in summer. Best bite is early morning and the evening. A dodger + streamer down deep or a thin spoon on lead core is the honest summer answer here.
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 15 ft | dawn & dusk | Main-lake point (5 ft) | Streamer flies (Grey Ghost) off boards, Thin spoon (Mooselook style) |
| Summer | 7 to 23 ft chart-limited; documented 25 to 60 ft | dawn & dusk | Deep basin (15 ft) | Dodger + streamer down deep, Thin spoon on lead core |
| Fall | 4 to 23 ft chart-limited; documented 5 to 30 ft | dawn & dusk | Main-lake point (5 ft) | Casting spoon at the mouths, Streamers |
| Winter | 6 to 23 ft chart-limited; documented 10 to 40 ft | dawn | Deep basin (15 ft) | Small jigging spoon, Swedish pimple + smelt |
Spring chinook salmon on Whitefish River hold shallow, usually 3 to 23 ft. Depth-wise the year is flat: 7 to 23 ft in summer, 7 to 23 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 15 ft that grades prime for summer. The feeding windows run early morning and the evening. The summer box starts with a flasher + fly (green/white) or a magnum spoon on downrigger.
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 23 ft chart-limited; documented 5 to 40 ft | dawn & dusk | Break off the point (7 ft) | Trolled spoon (orange/gold), Stickbait off planer boards |
| Summer | 7 to 23 ft chart-limited; documented 50 to 120 ft | dawn & dusk | Deep basin (15 ft) | Flasher + fly (green/white), Magnum spoon on downrigger |
| Fall | 5 to 23 ft chart-limited; documented 10 to 50 ft | dawn & dusk | Break off the point (7 ft) | J-plug (glow), Flasher + fly |
| Winter | 7 to 23 ft chart-limited; documented 30 to 90 ft | midday | Deep basin (15 ft) | Small spoon on a slow troll, Stickbait deep |
Early season coho salmon use the shallows, holding in 3 to 23 ft. Even in summer they hold at 7 to 23 ft; winter keeps them in 7 to 23 ft. Put Deep basin first on the milk run — a deep basin near 15 ft that grades prime for summer. In summer the feeding windows fall in early morning and the evening. Tie on a dodger + fly or a medium spoon above the thermocline 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 23 ft chart-limited; documented 3 to 25 ft | dawn & dusk | Main-lake point (5 ft) | Small orange dodger + peanut fly, Thin spoon (orange/silver) |
| Summer | 7 to 23 ft chart-limited; documented 30 to 70 ft | dawn & dusk | Deep basin (15 ft) | Dodger + fly, Medium spoon above the thermocline |
| Fall | 5 to 23 ft chart-limited; documented 8 to 40 ft | dawn & dusk | Main-lake point (5 ft) | Casting spoon, Spinner (chartreuse) |
| Winter | 7 to 23 ft chart-limited; documented 20 to 60 ft | midday | Deep basin (15 ft) | Small spoon, slow troll |
Whitefish River also holds walleye (7 to 23 ft in summer), sauger (7 to 23 ft in summer), yellow perch (7 to 23 ft in summer), northern pike (8 to 20 ft in summer), muskellunge (7 to 23 ft in summer), smallmouth bass (7 to 23 ft in summer), largemouth bass (8 to 20 ft in summer), rock bass (5 to 20 ft in summer), white bass (7 to 23 ft in summer), white perch (7 to 23 ft in summer), crappie (7 to 23 ft in summer), bluegill (4 to 15 ft in summer), pumpkinseed (2 to 10 ft in summer), brown bullhead (3 to 12 ft in summer), channel catfish (7 to 23 ft in summer), freshwater drum (6 to 23 ft in summer), common carp (3 to 15 ft in summer), lake sturgeon (7 to 23 ft in summer), longnose gar (1 to 12 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Count 6 structure marks on this chart. The deepest, Deep basin, sits near 15 ft.
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 Ontario waters are set by the Ontario fishing regulations (FMZ summary) — and special regulations can apply to Whitefish River specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Whitefish River is about 23 ft (7 m) deep at its deepest point. The depth data here comes from an MNRF lake survey by the Ontario MNRF.
Anglers target brook trout, rainbow trout, brown trout, landlocked salmon, chinook salmon, coho salmon, walleye, sauger, yellow perch, northern pike, muskellunge, smallmouth bass, largemouth bass, rock bass, white bass, white perch, crappie, bluegill, pumpkinseed, brown bullhead, channel catfish, freshwater drum, common carp, lake sturgeon, longnose gar on Whitefish River.
Deep basin is the top-rated area: a deep basin in about 15 ft of water that rates prime for landlocked salmon in summer. The map above holds the full rated-spot list for every species and season.
For brook 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 Whitefish River is regulated by the Ontario fishing regulations (FMZ summary). Check the official Ontario regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Grab Lake 2 mi · Katrine Lake 2 mi · Horseshoe Lake 2 mi · Frood Lake 3 mi · Charlton Lake 3 mi · Florence Lake 3 mi · Fox Lake 3 mi · Iroquois Bay 4 mi · West Quartzite Lake 5 mi · Alexander Lake 5 mi · Raven Lake 5 mi · Lang Lake 5 mi
See how Whitefish River stacks up: best largemouth bass lakes in Ontario · best smallmouth bass lakes in Ontario · best walleye lakes in Ontario · best white bass lakes in Ontario
More water nearby: Sudbury District fishing maps (868 charts). Browse all Ontario 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.