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Fishing Millers Lake: what the data says
92-acre lake near Marlboro. The lake tops out around 20 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Below is the species-by-species picture, pulled from the same data the map uses.
Arctic Grayling fishing at Millers Lake
Start shallow in spring: arctic grayling sit in 2 to 10 ft that time of year. By summer they slide out to 3 to 15 ft, and by winter most fish are in 6 to 20 ft. If you only fish one area, make it Deep basin: a deep basin around 20 ft that scores prime in winter. Plan around the evening and early morning in the warm months. Summer baits: a dry fly (parachute adams, elk hair caddis) or a small inline spinner gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | midday & dusk | 1/16 oz spinner (silver), Small dry fly (Adams, Griffith's) |
| Summer | 3 to 15 ft | dusk & dawn | Dry fly (parachute Adams, elk hair caddis), Small inline spinner |
| Fall | 6 to 20 ft | midday | Small spoon, Beadhead nymph under indicator |
| Winter | 6 to 20 ft | midday & dawn | Tungsten jig + waxworm, Small jigging spoon (gold) |
Brook Trout fishing at Millers Lake
In spring, brook trout run shallow here, mostly 2 to 15 ft. Summer pushes them deeper, 6 to 20 ft, and winter fish settle into 3 to 20 ft. The spot to know is Deep basin, a deep basin in about 20 ft of water that rates prime for brook trout in summer. In summer the feeding windows fall in early morning and the evening. Tie on a small spoon fished deep or a trolled lake-clear wobbler + worm and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Small inline spinner (gold), Tiny spoon |
| Summer | 6 to 20 ft | dawn & dusk | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Small jigging spoon, Tungsten jig + plastic |
Brown Trout fishing at Millers Lake
Spring brown trout on Millers Lake hold shallow, usually 2 to 20 ft. Summer fish stay in 6 to 20 ft, and winter fish hold in 3 to 20 ft. If you only fish one area, make it Break off the point: a drop-off around 11 ft that scores prime in summer. Best bite is after dark and early morning. Summer baits: a spoon at the thermocline or a deep stickbait (night) gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 20 ft | dawn & dusk | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 6 to 20 ft | night & dawn | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 3 to 20 ft | dusk & dawn | Jerkbait over gravel, Casting spoon |
| Winter | 3 to 20 ft | dawn | Jigging spoon, Small stickbait (slow) |
Rainbow Trout fishing at Millers Lake
Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. Summer fish stay in 5 to 20 ft, and winter fish hold in 4 to 20 ft. If you only fish one area, make it Break off the point: a drop-off around 11 ft that scores prime in winter. In summer the feeding windows fall in early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon covers the summer program.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Inline spinner (silver), Small spoon |
| Summer | 5 to 20 ft | dawn & dusk | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 6 to 20 ft | dawn & dusk | Casting spoon, Jerkbait over shoals |
| Winter | 4 to 20 ft | dawn | Jigging spoon, Tube jig (white) |
Notable structure
- Deep basin: deep basin, around 20 ft
- Break off the point: drop-off, around 11 ft
- Main-lake point: point, around 8 ft
- Secondary point: point, around 8 ft
- Shallow bay flat: weed flat, around 3 ft
- Back-bay flat: weed flat, around 3 ft
Common questions
How deep is Millers Lake?
Millers Lake is about 20 ft at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
What fish are in Millers Lake?
Anglers target rainbow trout, brown trout, brook trout, arctic grayling on Millers Lake.
Where is the best fishing spot on Millers Lake?
Deep basin is the top-rated area: a deep basin in about 20 ft of water that rates prime for arctic grayling in winter. Open the map above to see every rated spot for each species and season.
When is the best time to fish Millers Lake?
For arctic grayling, 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.
Nearby waters
Black Mud Lake · Fickle Lake · Obed Lake · Sang Lake · Shiningbank Lake · Mary Gregg Lake
See how Millers Lake stacks up: best rainbow trout lakes in Alberta · best brown trout lakes in Alberta · best brook trout lakes in Alberta · best arctic grayling lakes in Alberta
Browse all Alberta fishing maps or every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. For fishing guidance only, never navigation.