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Rating depth structure for walleye.
Shared by DepthScout anglers. Exact spots stay private, always.
53,050-acre lake near Island View. The lake tops out around 101 ft. The depth picture is modeled, anchored to the true shoreline and the water's published max depth — a scouting aid, never a chart to run a boat by. Every species below gets its seasonal read from the same numbers driving the chart.
Drawn out, this is 52,982 acres of water rimmed by 221.3 miles of bank — 23 islands included. An index of 6.9 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. The shallow band under 15 ft claims about 58% of the surface on the model — that's where the groceries are. Figure 53.7 mi of water from one end to the other, 11.9 mi at the beam. You'll find it in Division No. 6. Closest neighbour on DepthScout: Buffalo Pound Lake, 34 mi southwest of here.
Spring puts burbot in skinny water — 25 to 70 ft is the zone. Warm water sends them out to 30 to 101 ft; cold water stacks them in 15 to 60 ft. Deep basin is the standout, a deep basin at roughly 86 ft, rated prime for summer burbot. Plan around after dark and midday in the warm months. A heavy jig + cut bait covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 25 to 70 ft | night & dusk | Offshore hump (18 ft) | Glow jigging spoon + cut bait, Rattle bait (dark) |
| Summer | 30 to 101 ft | night & midday | Deep basin (86 ft) | Heavy jig + cut bait |
| Fall | 30 to 80 ft | night & dusk | Deep basin (86 ft) | Glow spoon + minnow head, Blade bait (slow) |
| Winter | 15 to 60 ft | night & dusk | Offshore hump (15 ft) | Glow tungsten + cut bait, Rattle spoon + minnow head |
Early season cisco (lake herring) use the shallows, holding in 10 to 40 ft. Summer is a 40 to 80 ft game here, winter a 20 to 60 ft one. The chart's best answer is Deep basin — deep basin, 86 ft, prime for summer. Best bite is early morning. Tie on a vertical flutter spoon (small) or a drop-shot micro plastic and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 40 ft | dawn & dusk | Offshore hump (15 ft) | Small silver spoon, Tiny swim jig (white) |
| Summer | 40 to 80 ft | dawn | Deep basin (86 ft) | Vertical flutter spoon (small), Drop-shot micro plastic |
| Fall | 5 to 25 ft | dusk & dawn | Rock reef (11 ft) | Small casting spoon, Inline spinner (silver) |
| Winter | 20 to 60 ft | dawn | Offshore hump (18 ft) | Small jigging spoon (glow/silver), Tungsten jig + minnow head |
Spring puts common carp in skinny water — 2 to 10 ft is the zone. As the season builds they drop to 3 to 15 ft, wintering in 10 to 30 ft. Spring common carp concentrate at Shallow bay flat, a prime-rated weed flat around 6 ft. Warm-month bites cluster around early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dawn | Shallow bay flat (6 ft) | |
| Summer | 3 to 15 ft | dawn & dusk | Shallow bay flat (6 ft) | |
| Fall | 5 to 18 ft | midday | Shallow bay flat (6 ft) | |
| Winter | 10 to 30 ft | midday | Deep basin (86 ft) |
Early season lake whitefish use the shallows, holding in 15 to 45 ft. Summer is a 40 to 90 ft game here, winter a 25 to 70 ft one. The chart's best answer is Deep basin — deep basin, 86 ft, prime for summer. Best bite is early morning. Tie on a blade bait vertical or a small jigging spoon and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 15 to 45 ft | midday & dawn | Offshore hump (18 ft) | Small jig + waxworm, Blade bait (small) |
| Summer | 40 to 90 ft | dawn | Deep basin (86 ft) | Blade bait vertical, Small jigging spoon |
| Fall | 8 to 30 ft | dusk | Rock reef (11 ft) | Small spoon (gold), Jig + plastic larva |
| Winter | 25 to 70 ft | midday & dawn | Offshore hump (18 ft) | Jigging spoon + bead chain, Tungsten jig + waxie |
Start shallow in spring: northern pike sit in 2 to 8 ft that time of year. Warm water sends them out to 8 to 20 ft; cold water stacks them in 5 to 15 ft. Top water on the chart: Shallow bay flat, a weed flat in the 6 ft range, prime in spring. Fish it in early morning and the evening and you'll meet the bite. 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 | Shallow bay flat (6 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 8 to 20 ft | dawn & dusk | Shallow flat (10 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 6 to 18 ft | midday & dawn | Shallow bay flat (6 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 5 to 15 ft | midday | Shallow bay flat (6 ft) | Tip-ups, Large jigging spoon |
Come spring, look for walleye tight to the bank in 4 to 15 ft. Expect a summer slide to 15 to 35 ft, then a winter hold in 20 to 40 ft. Start at Offshore hump. It's an offshore hump holding about 18 ft of water and rates prime come summer. Prime time lands in the evening and early morning. A crawler harness on bottom bouncer or a deep crankbait (trolled) is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | dusk & dawn | Rock reef (11 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 15 to 35 ft | dusk & dawn | Offshore hump (18 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 12 to 40 ft | dusk & night | Sharp break (19 ft) | Jigging rap, Jig + big minnow |
| Winter | 20 to 40 ft | dusk & dawn | Offshore hump (18 ft) | Jigging spoon + minnow head, Rattle bait |
Last Mountain Lake also holds yellow perch (10 to 30 ft in summer). Pick any of them on the map above for rated spots and bait picks.
Count 25 structure marks on this chart. The deepest, Deep basin, sits near 86 ft.
Season dates, license requirements, and size and bag limits for Saskatchewan waters are set by the Saskatchewan anglers' guide — and special regulations can apply to Last Mountain Lake specifically, so confirm the current rules before you fish.
Check the official Saskatchewan fishing regulations →
Last Mountain Lake is about 101 ft (31 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target burbot, cisco (lake herring), common carp, lake whitefish, northern pike, walleye, yellow perch on Last Mountain Lake.
Deep basin is the top-rated area: a deep basin in about 86 ft of water that rates prime for burbot in summer. The map above holds the full rated-spot list for every species and season.
For burbot, the summer bite is best in after dark and midday. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Last Mountain Lake is regulated by the Saskatchewan anglers' guide. Check the official Saskatchewan regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Buffalo Pound Lake 34 mi · Condie Reservoir 38 mi · Dellwood Brook Reservoir 53 mi · Wynyard_Reservoir 60 mi · Oyama Reservoir 64 mi · Diefenbaker Lake 71 mi · Little Quill Lake 73 mi · Brightwater Creek Reservoir 73 mi · Humboldt Lake 75 mi · Avonlea PFRA Reservoir 75 mi · Blackstrap Reservoir 77 mi · Bradwell Reservoir 77 mi
See how Last Mountain Lake stacks up: best walleye lakes in Saskatchewan · best northern pike lakes in Saskatchewan · best yellow perch lakes in Saskatchewan · best common carp lakes in Saskatchewan
Browse all Saskatchewan fishing maps or see every water on DepthScout. 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.