Sign inSign up free Sign inSign up free Sign inSign up freeLake depth chart
Today's read
Rating depth structure for pumpkinseed.
Shared by DepthScout anglers. Exact spots stay private, always.
36-acre lake in Renfrew 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 the Ontario MNRF survey of 1995 (an MNRF lake survey). Here is how the season plays out for each species, straight from the data behind the map.
Traced from the shoreline, Frogharbour Lake runs 35 acres with 1.2 miles of edge. Nearly circular (index 1.4), so the story is the bottom, not the bank. There is no deep basin to speak of — the entire surface is under ~15 ft, prime weed water end to end. Tip to tip the water measures near 0.4 mi with a 0.2-mi widest point. The water lies in Renfrew County. For a second option, Shulist Lake lies 2 mi southwest.
Come spring, look for pumpkinseed tight to the bank in 1 to 8 ft. Expect a summer slide to 2 to 10 ft, then a winter hold in 3 to 10 ft. Start at Shallow bay flat. It's a weed flat holding about 1 ft of water and rates prime come spring. Prime time lands in the evening and early morning. A micro tube or a sponge spider (fly) is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 8 ft | midday & dusk | Shallow bay flat (1 ft) | Micro jig under a float, Tiny beetle-spin |
| Summer | 2 to 10 ft | dusk & dawn | Shallow bay flat (1 ft) | Micro tube, Sponge spider (fly) |
| Fall | 3 to 10 ft | dusk & dawn | Shallow bay flat (1 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 3 to 10 ft | dawn | Deep basin (10 ft) | Tungsten ice jig + plastic, Tiny spoon |
Start shallow in spring: brown bullhead sit in 2 to 8 ft that time of year. Summer pushes them deeper, 3 to 10 ft, and winter fish settle into 3 to 10 ft. The spot to know is Deep basin, a deep basin in about 10 ft of water that rates prime for brown bullhead in winter. Warm-month bites cluster around after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (1 ft) | |
| Summer | 3 to 10 ft | night & dusk | Shallow bay flat (1 ft) | |
| Fall | 3 to 10 ft | dusk | Deep basin (10 ft) | |
| Winter | 3 to 10 ft | midday | Deep basin (10 ft) |
Count 4 structure marks on this chart. The deepest, Deep basin, sits near 10 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 Frogharbour Lake specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Frogharbour Lake is about 10 ft (3 m) deep at its deepest point. The depth data here comes from the Ontario MNRF survey of 1995 (an MNRF lake survey).
Anglers target pumpkinseed, brown bullhead on Frogharbour Lake.
Shallow bay flat is the top-rated area: a weed flat in about 1 ft of water that rates prime for pumpkinseed in spring. The map above holds the full rated-spot list for every species and season.
For pumpkinseed, 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 Frogharbour 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.
Shulist Lake 2 mi · Piecarski Lake 3 mi · Albert Lake 3 mi · Kretzel Lake 3 mi · Mishap Lake 4 mi · Yantha Lake 4 mi · Wadsworth Lake 4 mi · Pershick Lake 5 mi · Partridge Lake 5 mi · Stoney Lake 5 mi · Annies Lake 5 mi · Dam Lake 5 mi
See how Frogharbour Lake stacks up: best pumpkinseed lakes in Ontario · best brown bullhead lakes in Ontario
More water nearby: Renfrew County fishing maps (298 charts). Browse all Ontario fishing maps or 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.