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52-acre lake in Rainy River District, Ontario. The lake tops out around 10 ft. The depth data here comes from a transect sounding survey by the Ontario MNRF. What the data behind the map says about each species, season by season:
On the chart, Block 5 Lake 30 draws 52 acres inside 1.9 miles of shoreline — 2 islands included. Index 1.9 on the shoreline: a few honest points and pockets, nothing labyrinthine. 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 0.7 mi with a 0.2-mi widest point. You'll find it in Rainy River District. The nearest mapped water is Block 5 Lake 7, 0 mi to the southwest.
Early season walleye use the shallows, holding in 3 to 10 ft. Even in summer they hold at 3 to 10 ft; winter keeps them in 3 to 10 ft. Put Break off the point first on the milk run — a drop-off near 3 ft that grades prime for fall. In summer the feeding windows fall in the evening and early morning. Tie on a crawler harness on bottom bouncer or a deep crankbait (trolled) and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 10 ft | dusk & dawn | Main-lake point (4 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 3 to 10 ft | dusk & dawn | Break off the point (3 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 3 to 10 ft | dusk & night | Break off the point (3 ft) | Jigging rap, Jig + big minnow |
| Winter | 3 to 10 ft | dusk & dawn | Deep basin (10 ft) | Jigging spoon + minnow head, Rattle bait |
Block 5 Lake 30 carries 5 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 Ontario waters are set by the Ontario fishing regulations (FMZ summary) — and special regulations can apply to Block 5 Lake 30 specifically, so confirm the current rules before you fish.
Check the official Ontario fishing regulations →
Block 5 Lake 30 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 walleye on Block 5 Lake 30.
Break off the point is the top-rated area: a drop-off in about 3 ft of water that rates prime for walleye in fall. Open the map above to see every rated spot for each 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 Block 5 Lake 30 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.
Block 5 Lake 7 0 mi · Darkwater Lake 1 mi · Ballard Lake 3 mi · Gratton Lake 5 mi · Middle Roland Lake 5 mi · Pulling Lake 6 mi · Little Roland Lake 6 mi · Pond Lake 6 mi · Dahlin Lake 6 mi · Poohbah Lake 7 mi · McAree Lake 7 mi · Crooked 9 mi, MN/ON
See how Block 5 Lake 30 stacks up: best walleye lakes in Ontario
More water nearby: Rainy River District fishing maps (257 charts). Browse all Ontario fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.