Lake depth chart
Today's read
Rating depth structure for walleye.
Recent public catches load as you reach this section.
8,358-acre lake in Kenora District, Ontario. The lake tops out around 26 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 the Ontario MNRF survey of 1978, a decades-old survey (a transect sounding survey). Here is how the season plays out for each species, straight from the data behind the map.
Traced from the shoreline, Long Dog Lake runs 8,395 acres with 136.5 miles of edge, broken up by 26 islands. A development index of 10.6 means a maze of bays and points: far more casting targets than a round bowl of the same size. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. Figure 10.7 mi of water from one end to the other, 6.9 mi at the beam. The water lies in Kenora District. The nearest mapped water is Unnamed Lake, 8 mi to the south.
Come spring, look for walleye tight to the bank in 4 to 15 ft. They move out to 8 to 26 ft in summer and finish the year down in 8 to 26 ft. If you only fish one area, make it Sharp break: a drop-off around 14 ft that scores prime in fall. Best bite is the evening and early morning. A crawler harness on bottom bouncer or a deep crankbait (trolled) 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 | 4 to 15 ft | dusk & dawn | Gravel shoal (2 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 8 to 26 ft chart-limited; documented 15 to 35 ft | dusk & dawn | Sharp break (14 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 8 to 26 ft chart-limited; documented 12 to 40 ft | dusk & night | Sharp break (14 ft) | Jigging rap, Jig + big minnow |
| Winter | 8 to 26 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (16 ft) | Jigging spoon + minnow head, Rattle bait |
Start shallow in spring: northern pike sit in 2 to 8 ft that time of year. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 5 to 15 ft. The spot to know is Weed flat, a weed flat in about 2 ft of water that rates prime for northern pike in spring. Warm-month bites cluster around early morning and the evening. Throw a bucktail or a weedless spoon over cabbage until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Weed flat (2 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Sharp break (14 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Sharp break (14 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shoreline point (5 ft) | Tip-ups, Large jigging spoon |
When the water first warms, lake sturgeon slide up into 3 to 15 ft. Summer is an 8 to 26 ft game here, winter an 8 to 26 ft one. Start at Deep basin. It's a deep basin holding about 16 ft of water and rates prime come fall. The feeding windows run 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 15 ft | dusk & night | Gravel shoal (2 ft) | |
| Summer | 8 to 26 ft chart-limited; documented 15 to 40 ft | night & dusk | Deep basin (16 ft) | |
| Fall | 8 to 26 ft chart-limited; documented 15 to 45 ft | dusk | Deep basin (16 ft) | |
| Winter | 8 to 26 ft chart-limited; documented 20 to 60 ft | midday | Deep basin (16 ft) |
Count 15 structure marks on this chart. The deepest, Deep basin, sits near 16 ft.
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 Long Dog Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Long Dog Lake is about 26 ft (8 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1978, a decades-old survey (a transect sounding survey).
Anglers target walleye, northern pike, lake sturgeon on Long Dog Lake. This isn't a survey of the lake — none is on record for it — but an informed estimate from the species Ontario's MNRF recorded in the nearest surveyed lakes, filtered to this lake's depth and habitat.
Sharp break is the top-rated area: a drop-off in about 14 ft of water that rates prime for walleye in fall. The map above holds the full rated-spot list for every species and season.
For walleye, the summer bite is best in the evening and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Long Dog Lake 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.
Unnamed Lake 8 mi · Unnamed Lake 10 mi · Unnamed Lake 20 mi · Lake C056-05 24 mi · Unnamed Lake 25 mi · Angling Lake 27 mi · Nemeigusabins Lake 29 mi · Wunnummin Lake 36 mi · Kingfisher Lake 37 mi · Maria Lake 38 mi · Big Trout Lake 39 mi · Bug Lake 40 mi
See how Long Dog Lake stacks up: best walleye lakes in Ontario · best northern pike lakes in Ontario · best lake sturgeon lakes in Ontario
More water nearby: Kenora District fishing maps (1173 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.