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Rating depth structure for yellow perch.
Shared by DepthScout anglers. Exact spots stay private, always.
1,810-acre lake near New Sarepta. The lake tops out around 10 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Species by species, here's what the data says the year looks like.
Traced from the shoreline, Joseph Lake runs 1,806 acres with 9.5 miles of edge, broken up by an island. Index 1.6 on the shoreline: a few honest points and pockets, nothing labyrinthine. All of it is shallow-zone water — under ~15 ft across the entire basin, so the food chain has the run of the place. Figure 2.7 mi of water from one end to the other, 2 mi at the beam. You'll find it in Division No. 11. The nearest mapped water is Oliver Lake, 2 mi to the east.
Spring yellow perch on Joseph Lake hold shallow, usually 3 to 10 ft. Depth-wise the year is flat: 3 to 10 ft in summer, 3 to 10 ft once it turns cold. Put Back-bay flat first on the milk run — a weed flat near 3 ft that grades prime for spring. The feeding windows run early morning. The summer box starts with a drop-shot micro plastics or a small spoon tipped with worm.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 10 ft | midday & dawn | Back-bay flat (3 ft) | Small jig + curly tail, Perch-pattern micro crank |
| Summer | 3 to 10 ft | dawn | Deep basin (10 ft) | Drop-shot micro plastics, Small spoon tipped with worm |
| Fall | 3 to 10 ft | midday | Deep basin (10 ft) | Jigging spoon (small), Perch rig / spreader |
| Winter | 3 to 10 ft | midday & dawn | Deep basin (10 ft) | Tungsten jig + spikes, Rattle spoon (small) |
The chart marks 6 structure features on Joseph Lake; the deepest is Deep basin at about 10 ft.
Season dates, license requirements, and size and bag limits for Alberta waters are set by the Alberta fishing regulations — and special regulations can apply to Joseph Lake specifically, so confirm the current rules before you fish.
Check the official Alberta fishing regulations →
Joseph Lake is about 10 ft (3 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target yellow perch on Joseph Lake.
Back-bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for yellow perch in spring. Open the map above to see every rated spot for each species and season.
For yellow perch, the summer bite is best in 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 Joseph Lake is regulated by the Alberta fishing regulations. Check the official Alberta regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Oliver Lake 2 mi · Miquelon Lakes 7 mi · Cooking Lake 10 mi · Hastings Lake 11 mi · Antler Lake 15 mi · Coal Lake 18 mi · Telford Lake 19 mi · Astotin Lake 29 mi · Wizard Lake 35 mi · Little Beaver Lake 36 mi · Samson Lake 38 mi · Red Deer Lake 40 mi
See how Joseph Lake stacks up: best yellow perch lakes in Alberta
More water nearby: Division No. 11 fishing maps (25 charts). Browse all Alberta 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.