Lake depth chart
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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
74-acre lake in Simcoe County, Ontario. The lake tops out around 10 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 a transect sounding survey by the Ontario MNRF. The rest of this page walks each species through its year, using the map's own scoring.
The outline encloses 74 acres, worked by 4.4 miles of shoreline, with 4 islands in the mix. The 3.7 development index tells the story — a convoluted bank whose fishable edge far outruns the acreage. Nothing on this chart breaks 15 ft, which makes the whole surface littoral: weeds, bait and ambush cover everywhere. Call it 0.9 mi long by 0.5 mi wide at the broadest reach. It sits in Simcoe County. Its nearest charted neighbour, Harding P., is 13 mi to the west.
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, rainbow trout slide up into 3 to 10 ft. There's no big seasonal slide here — summer means 3 to 10 ft, winter 2 to 10 ft. If you only fish one area, make it Break off the point: a drop-off around 5 ft that scores prime in winter. In summer the feeding windows fall in early morning and the evening. Keep a dodger + spoon (deep troll) or a flutter spoon 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 | 3 to 10 ft chart-limited; documented 5 to 20 ft | dawn & dusk | Main-lake point (3 ft) | Inline spinner (silver), Small spoon |
| Summer | 3 to 10 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Break off the point (5 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 3 to 10 ft chart-limited; documented 10 to 35 ft | dawn & dusk | Main-lake point (3 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 2 to 10 ft chart-limited; documented 8 to 40 ft | dawn | Break off the point (5 ft) | Jigging spoon, Tube jig (white) |
The spring pattern is a shallow one: brown trout in 1 to 10 ft. The depth story barely changes: 3 to 10 ft through summer, 1 to 10 ft in winter. The spot to know is Break off the point, a drop-off in about 5 ft of water that rates prime for brown trout in summer. Plan around after dark and early morning in the warm months. Summer baits: a spoon at the thermocline or a deep stickbait (night) 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 10 ft chart-limited; documented 3 to 25 ft | dawn & dusk | Main-lake point (3 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 3 to 10 ft chart-limited; documented 25 to 60 ft | night & dawn | Break off the point (5 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 2 to 10 ft chart-limited; documented 5 to 30 ft | dusk & dawn | Main-lake point (3 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 1 to 10 ft chart-limited; documented 5 to 35 ft | dawn | Break off the point (5 ft) | Jigging spoon, Small stickbait (slow) |
Early season chinook salmon use the shallows, holding in 1 to 10 ft. Even in summer they hold at 3 to 10 ft; winter keeps them in 3 to 10 ft. Put Deep basin first on the milk run — a deep basin near 10 ft that grades good for summer. In summer the feeding windows fall in early morning and the evening. Tie on a flasher + fly (green/white) or a magnum spoon on downrigger 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 | 1 to 10 ft chart-limited; documented 5 to 40 ft | dawn & dusk | Break off the point (5 ft) | Trolled spoon (orange/gold), Stickbait off planer boards |
| Summer | 3 to 10 ft chart-limited; documented 50 to 120 ft | dawn & dusk | Deep basin (10 ft) | Flasher + fly (green/white), Magnum spoon on downrigger |
| Fall | 2 to 10 ft chart-limited; documented 10 to 50 ft | dawn & dusk | Break off the point (5 ft) | J-plug (glow), Flasher + fly |
| Winter | 3 to 10 ft chart-limited; documented 30 to 90 ft | midday | Deep basin (10 ft) | Small spoon on a slow troll, Stickbait deep |
6 pieces of structure are mapped here — Deep basin, around 10 ft, is the deepest of them.
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 Earl Rowe Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Earl Rowe Lake is about 10 ft (3 m) deep at its deepest point. The depth data here comes from a transect sounding survey by the Ontario MNRF.
Anglers target rainbow trout, brown trout, chinook salmon on Earl Rowe Lake.
Deep basin is the top-rated area: a deep basin in about 10 ft of water that rates good for chinook salmon in summer. Every other rated spot, per species and season, is on the map above.
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.
Fishing on Earl Rowe 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.
Harding P. 13 mi · New Lowell Re. 14 mi · Island Lake 17 mi · Widgett Lake 20 mi · Caledon Lake 21 mi · Hackett Lake 22 mi · Little Lake 22 mi · Green Lake 22 mi · Edward Lake 22 mi · Mary Lake 23 mi · Jacks Lake 23 mi · Mud Lake 23 mi
See how Earl Rowe Lake stacks up: best rainbow trout lakes in Ontario · best chinook salmon lakes in Ontario · best brown trout lakes in Ontario
More water nearby: Simcoe County fishing maps (31 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.