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Rating depth structure for walleye.
Recent public catches load as you reach this section.
302-acre lake near North Dakota. North Dakota Game & Fish survey water. The lake tops out around 9 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.
The drawn water covers 302 acres wrapped in 2.7 miles of bank. At index 1.1 the outline is almost a bowl — read the depth changes, not the shoreline. 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 1 mi with a 0.7-mi widest point. It sits in Sargent County. Its nearest charted neighbour, Silver Lake, is 2 mi to the west.
The spring pattern is a shallow one: walleye in 2 to 9 ft. The depth story barely changes: 3 to 9 ft through summer, 3 to 9 ft in winter. The spot to know is Creek inflow, an inflow / creek mouth in about 2 ft of water that rates prime for walleye in spring. Plan around the evening and early morning in the warm months. Summer baits: a crawler harness on bottom bouncer or a deep crankbait (trolled) gets it done.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 9 ft chart-limited; documented 4 to 15 ft | dusk & dawn | Creek inflow (2 ft) | 1/8 oz jig + minnow, Hair jig |
| Summer | 3 to 9 ft chart-limited; documented 15 to 35 ft | dusk & dawn | Break off the point (9 ft) | Crawler harness on bottom bouncer, Deep crankbait (trolled) |
| Fall | 3 to 9 ft chart-limited; documented 12 to 40 ft | dusk & night | Break off the point (9 ft) | Jigging rap, Jig + big minnow |
| Winter | 3 to 9 ft chart-limited; documented 20 to 40 ft | dusk & dawn | Deep basin (9 ft) | Jigging spoon + minnow head, Rattle bait |
Early season northern pike use the shallows, holding in 2 to 8 ft. Summer is a 3 to 9 ft game here, winter a 3 to 9 ft one. The chart's best answer is Shallow bay flat — weed flat, 3 ft, prime for spring. Best bite is early morning and the evening. Tie on a bucktail or a weedless spoon over cabbage and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (3 ft) | #5 inline spinner, Spoon (red/white) |
| Summer | 3 to 9 ft chart-limited; documented 8 to 20 ft | dawn & dusk | Shallow bay flat (3 ft) | Bucktail, Weedless spoon over cabbage |
| Fall | 3 to 9 ft chart-limited; documented 6 to 18 ft | midday & dawn | Shallow bay flat (3 ft) | Big rubber (Bull Dawg style), Husky-style jerkbait |
| Winter | 3 to 9 ft chart-limited; documented 5 to 15 ft | midday | Shallow bay flat (3 ft) | Tip-ups, Large jigging spoon |
8 pieces of structure are mapped here — Deep basin, around 9 ft, is the deepest of them.
Access data: North Dakota Game & Fish - Fishing Facilities. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for North Dakota waters are set by the North Dakota Game and Fish — and special regulations can apply to Sprague Lake specifically, so confirm the current rules before you fish.
Check the official North Dakota fishing regulations →
Sprague Lake is about 9 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 walleye, northern pike on Sprague Lake.
Creek inflow is the top-rated area: an inflow / creek mouth in about 2 ft of water that rates prime for walleye in spring. Scroll up to the map for the complete spot list by 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 Sprague Lake is regulated by the North Dakota Game and Fish. Check the official North Dakota regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Silver Lake 2 mi · Consolidated Lake 4 mi · Ole Breum Lake 7 mi · Lake Tewaukon 9 mi · Buffalo Lake 9 mi · White Lake 12 mi, SD · Grass Lake 16 mi · Nine Mile Lake 18 mi, SD · Shriner Lake 19 mi · Wahl Lake 19 mi · Kraft Slough 20 mi · West Moran Lake 20 mi
See how Sprague Lake stacks up: best walleye lakes in North Dakota · best northern pike lakes in North Dakota
More water nearby: Sargent County fishing maps (7 charts). Browse all North Dakota fishing maps. 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.